Patent US1176494A successfully refreshed from Google Patents.
US1176494A
Expired / Lapsed
US
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Shifting mechanism for railway-switches.
Assignee: Individual
•
Filing: 1915-04-17
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Granted: 1916-03-21
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Expires: 1935-04-17
Abstract
No abstract record available.
Inventors
- 👤 John Spelling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:50
CPC Classifications
F; F16; F16H; F16H21/00; F16H21/10; F16H21/44; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18992
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) | 1919-03-21 | 1919-09-20 | 1920-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-03-21 | 1923-09-20 | 1924-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-03-21 | 1927-09-20 | 1928-03-21 | $7700.00 | Window Closed / Lapsed |