Patent JPS5955071A successfully refreshed from Google Patents.
US896438A
Expired / Lapsed
US
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Pressure-regulating system.
Assignee: Individual
•
Filing: 1907-12-26
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Granted: 1908-08-18
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Expires: 1927-12-26
Abstract
No abstract record available.
Inventors
- 👤 Frank B Comins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:21
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/0005; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86863; Y10T137/86871
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) | 1911-08-18 | 1912-02-17 | 1912-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-08-18 | 1916-02-17 | 1916-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-08-18 | 1920-02-17 | 1920-08-18 | $7700.00 | Window Closed / Lapsed |