Patent US1512939A successfully refreshed from Google Patents.
US1512939A
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Assignee: Yale and Towne Manufacturing Co
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Filing: 1923-09-04
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Granted: 1924-10-28
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Expires: 1943-09-04
Abstract
No abstract record available.
Inventors
- 👤 Ledin Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:41
CPC Classifications
E; E05; E05B; E05B9/00; E05B9/08; E05B9/082; E05B17/00; E05B17/20; E05B17/2084; Y; Y10; Y10S; Y10S70/00; Y10S70/57; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/5341
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-10-28 | 1928-04-28 | 1928-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-10-28 | 1932-04-28 | 1932-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-10-28 | 1936-04-28 | 1936-10-28 | $7700.00 | Window Closed / Lapsed |