Patent DE679501C successfully refreshed from Google Patents.
Patent US1973740A successfully refreshed from Google Patents.
US1973740A
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Finish and method of producing same
Assignee: Otis Elevator Co
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Filing: 1931-03-14
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Granted: 1934-09-18
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Expires: 1951-03-14
Abstract
No abstract record available.
Inventors
- 👤 Andres Charles Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:09
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/14; B05D7/16; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12063; Y10T428/12069; Y10T428/12451; Y10T428/12479; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12583; Y10T428/12771; Y10T428/12861; Y10T428/12951
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) | 1937-09-17 | 1938-03-19 | 1938-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-09-17 | 1942-03-19 | 1942-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-09-17 | 1946-03-19 | 1946-09-18 | $7700.00 | Window Closed / Lapsed |