Patent US3159348A successfully refreshed from Google Patents.
US3159348A
Expired / Lapsed
US
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Apparatus for spraying heat fusible pulverulent material
Assignee: 3M Co
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Filing: 1962-03-12
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Granted: 1964-12-01
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Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Donald R Wedan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:40
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/08; B05B7/16; B05B7/168; B05B7/20; B05B7/201; B05B7/205
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
68 words
APPARATUS FOR SPRAYING HEAT-FUSIBLE PULVERULENT MATERIAL UPON A SURFACE TO BE COATED, COMPRISING A SPRAY HEAD HAVING A BASE REGION AND AT LEAST ONE WING EXTENDING FORWARDLY OF SAID BASE REGION, SAID BASE REGION CONTAINING NOZZLE MEANS FOR SPRAYING HEAT-FUSIBLE PULVERULENT MATERIAL AND FLAME-PRODUCING MEANS FOR HEATING SPRAYED HEAT-FUSIBLE PULVERULENT MATERIAL, AND SAID WING CONTAINING IN ITS TIP REGION FLAME-PRODUCING MEANS FOR HEATING A SURFACE TO BE COATED.
References Cited (Backward Citations)
US2125764A
Cited
US2436335A
Cited
FR953863A
Cited
US2746883A
Cited
FR1054610A
Cited
US3028257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |