Patent US2969683A successfully refreshed from Google Patents.
US976148A
Expired / Lapsed
US
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Chemical-feeding device.
Assignee: Individual
•
Filing: 1909-07-23
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Granted: 1910-11-22
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Expires: 1929-07-23
Abstract
No abstract record available.
Inventors
- 👤 John E Caps
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:35
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/686; G; G05; G05D; G05D11/00; G05D11/008; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2516
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) | 1913-11-21 | 1914-05-23 | 1914-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-11-21 | 1918-05-23 | 1918-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-11-21 | 1922-05-23 | 1922-11-22 | $7700.00 | Window Closed / Lapsed |