US2882711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door and lock assembly
Assignee: AMERICAN ART METALS Co
•
Filing: 1954-02-01
•
Granted: 1959-04-21
•
Expires: 1974-02-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter L Clifton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:42
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/0017; E05B65/00; E05B65/0028; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/5341; Y10T70/80; Y10T70/8432; Y10T70/8459; Y10T70/8541
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1073160A
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US1283131A
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US953995A
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US1245617A
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US1922860A
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US1981289A
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US2579861A
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US2605869A
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US2644554A
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US2601775A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |