US1368228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical movement for electric switches, &c.
Assignee: W R Ostrander & Co
•
Filing: 1919-12-06
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Granted: 1921-02-08
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Expires: 1939-12-06
Abstract
No abstract record available.
Inventors
- 👤 Walter A Behrens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:22
CPC Classifications
H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/36; H01H21/40; H01H21/42; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18856; Y10T74/18864
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) | 1924-02-08 | 1924-08-09 | 1925-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-02-08 | 1928-08-09 | 1929-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-02-08 | 1932-08-09 | 1933-02-08 | $7700.00 | Window Closed / Lapsed |