Patent US3407538A successfully refreshed from Google Patents.
US3407538A
Expired / Lapsed
US
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Sandblaster for floors
Assignee: ANTHONY E CODINA
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Filing: 1966-08-29
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Granted: 1968-10-29
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Expires: 1986-08-29
Abstract
No abstract record available.
Inventors
- 👤 Anthony E Codina
- 👤 George C Punton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:31
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/08; B; B24; B24C; B24C3/00; B24C3/02; B24C3/06; B24C3/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
SANDBLASTING MECHANISM, COMPRISING IN COMBINATION: (A) WALLS, IN COMBINATION WITH A SURFACE TO BE CLEANED, FORMING A CLOSED HOUSING, SAID HOUSING HAVING: (1) A CONDUIT OF THE TYPE FOR CONVEYING SAND AND AIR UNDER PRESSURE, EXTENDING THROUGH A WALL OF THE HOUSING, SAID CONDUIT INCLUDING A FLEXIBLE PORTION IN THE HOUSING AND SAID FLEXIBLE PORITON HAVING AN OUTLET END TERMINATING IN THE HOUSING; (2) AN OPENING FORMING AN OUTLET FOR SAND AND AIR; (3) A CONDUIT FOR AIR FOR HUMAN BREATHING PURPOSES EXTENDING THROUGH A WALL OF THE HOUSING;
Claim 2
Dependent Claim
89 words
SANDBLASTING MECHANISM, COMPRISING IN COMBINATION: (A) WALLS, IN COMBINATION WITH A SURFACE TO BE CLEANED, FORMING A CLOSED HOUSING, SAID HOUSING HAVING: (1) A CONDUIT OF THE TYPE FOR CONVEYING SAND AND AIR UNDER PRESSURE, EXTENDING THROUGH A WALL OF THE HOUSING, SAID CONDUIT INCLUDING A FLEXIBLE PORTION IN THE HOUSING AND SAID FLEXIBLE PORITON HAVING AN OUTLET END TERMINATING IN THE HOUSING; (2) AN OPENING FORMING AN OUTLET FOR SAND AND AIR; (3) A CONDUIT FOR AIR FOR HUMAN BREATHING PURPOSES EXTENDING THROUGH A WALL OF THE HOUSING;
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |