Patent US944988A successfully refreshed from Google Patents.
US944988A
Expired / Lapsed
US
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Time mechanism for operating gas and other valves.
Assignee: PENNSYLVANIA GLOBE GAS LIGHT Co
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Filing: 1907-08-01
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Granted: 1909-12-28
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Expires: 1927-08-01
Abstract
No abstract record available.
Inventors
- 👤 Victor H Slinack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:55
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/48; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86397; Y10T137/86405; Y10T137/86421; Y10T137/86437
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) | 1912-12-27 | 1913-06-28 | 1913-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-12-27 | 1917-06-28 | 1917-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-12-27 | 1921-06-28 | 1921-12-28 | $7700.00 | Window Closed / Lapsed |