US3148487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanding device
Assignee: Individual
•
Filing: 1963-06-12
•
Granted: 1964-09-15
•
Expires: 1983-06-12
Abstract
No abstract record available.
Inventors
- 👤 Desmond V Fildes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:35
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A DEVICE OF THE CLASS DESCRIBED INCLUDING A BASE, AT LEAST ONE RECIPROCATORY MEMBER RECIPROCABLY SUPPORTED BELOW THE BASE, SAID RECIPROCATORY MEMBER COMPRISING A PAIR OF MEMBERS CONNECTED TO EACH OTHER, ONE ABOVE THE OTHER, IN RIGIDLY SPACED RELATION TO EACH OTHER, MEANS ENCLOSING THE SPACE BETWEEN SAID MEMBERS TO PROVIDE A PLENUM CHAMBER AND MEANS FOR DRAWING A VACUUM SUPPORTED BY SAID BASE AND CONNECTING MEANS CONNECTING SAID VACUUM MEANS TO SAID PLENUM CHAMBER, MEANS FOR PERFORMING WORK ON A SURFACE SUPPORTED FROM ONE OF SAID PAIR OF SPACED MEMBERS AND ARRANGED TO BE ENGAGED WITH A SURFACE UPON WHICH WORK IS TO BE PERFORMED AND RECIPROCATED BY SAID MEMBER, AND DUCT MEANS CONNECTING SAID WORK PERFORMING MEANS TO SAID PLENUM CHAMBER.
Claim 2
Independent Claim
123 words
A DEVICE OF THE CLASS DESCRIBED INCLUDING A BASE, AT LEAST ONE RECIPROCATORY MEMBER RECIPROCABLY SUPPORTED BELOW THE BASE, SAID RECIPROCATORY MEMBER COMPRISING A PAIR OF MEMBERS CONNECTED TO EACH OTHER, ONE ABOVE THE OTHER, IN RIGIDLY SPACED RELATION TO EACH OTHER, MEANS ENCLOSING THE SPACE BETWEEN SAID MEMBERS TO PROVIDE A PLENUM CHAMBER AND MEANS FOR DRAWING A VACUUM SUPPORTED BY SAID BASE AND CONNECTING MEANS CONNECTING SAID VACUUM MEANS TO SAID PLENUM CHAMBER, MEANS FOR PERFORMING WORK ON A SURFACE SUPPORTED FROM ONE OF SAID PAIR OF SPACED MEMBERS AND ARRANGED TO BE ENGAGED WITH A SURFACE UPON WHICH WORK IS TO BE PERFORMED AND RECIPROCATED BY SAID MEMBER, AND DUCT MEANS CONNECTING SAID WORK PERFORMING MEANS TO SAID PLENUM CHAMBER.
References Cited (Backward Citations)
US1492659A
Cited
US1681648A
Cited
US1868507A
Cited
US2478074A
Cited
US2764852A
Cited
US2929177A
Cited
US2956379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |