RB

Robert C. Berfield

SV Shop Vac: 138 patents #1 of 59Top 2%
MC Mcculloch: 1 patents #20 of 34Top 60%
📍 Jersey Shore, PA: #1 of 25 inventorsTop 4%
🗺 Pennsylvania: #67 of 74,527 inventorsTop 1%
Overall (All Time): #6,502 of 4,157,543Top 1%
147
Patents All Time

Issued Patents All Time

Showing 126–147 of 147 patents

Patent #TitleCo-InventorsDate
4616378 Means for mounting floor pickup nozzle to dolly for vacuum cleaner Robert L. Crevling, Jr. 1986-10-14
4609387 Collapsible support cage for vacuum cleaner filter Robert L. Crevling, Jr. 1986-09-02
4606563 Conduit fixture for tank wall Robert L. Crevling, Jr. 1986-08-19
4592111 Spring retainer for vacuum cleaner nozzle brush 1986-06-03
4586214 Compact vacuum cleaner 1986-05-06
4577366 Vacuum cleaner nozzle having rotating brush Jonathan Miller, Robert L. Crevling, Jr. 1986-03-25
4563789 Hose end holder 1986-01-14
4547927 Compact vacuum cleaner 1985-10-22
4538971 Assembly of tank lid and fan means of a wet/dry vacuum Jonathan Miller, Rudolph W. Wacek, Ronald F. Meland, Robert L. Crevling, Jr., Lonnie B. Lawson, Jr. 1985-09-03
D280143 Electric vacuum cleaner Ronald F. Meland 1985-08-13
4512713 Vibration isolating means 1985-04-23
4508550 Air flow responsive outlet from tank of vacuum cleaner Robert L. Crevling, Jr., Lonnie B. Lawson, Jr. 1985-04-02
4501378 Resilient detented lid latch 1985-02-26
D276948 Dolly for a tank, barrel, or the like Rudolph W. Wacek, Ronald F. Meland 1984-12-25
D276279 Electric vacuum cleaner Jonathan Miller, Rudolph W. Wacek 1984-11-06
4475265 Shoe attachment for wet/dry electric vacuum cleaner 1984-10-09
4462137 Electric vacuum cleaner Richard M. Fegan 1984-07-31
4435877 Noise reducing means for vacuum cleaner 1984-03-13
4413372 Shoe attachment for wet/dry electric vacuum cleaner 1983-11-08
4334337 Compact wet-dry electric vacuum cleaner Jonathan Miller, Richard M. Fegan, Kenneth R. Hiester, Rudolph W. Wacek 1982-06-15
4330899 Noise reducing blower motor housing means for vacuum cleaner, or the like Jonathan Miller, Richard M. Fegan, Kenneth R. Hiester, Rudolph W. Wacek 1982-05-25
4270668 Buckle or latch for holding lid to container 1981-06-02