US939108A
Expired / Lapsed
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Assignee: Individual
•
Filing: 1909-02-11
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Granted: 1909-11-02
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Expires: 1929-02-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Swank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:58
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7069; Y10T137/7256; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5615; Y10T70/5619; Y10T70/5633; Y10T70/5757; Y10T70/5765; Y10T70/577
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) | 1912-11-01 | 1913-05-03 | 1913-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-11-01 | 1917-05-03 | 1917-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-11-01 | 1921-05-03 | 1921-11-02 | $7700.00 | Window Closed / Lapsed |