US915671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically-controlled feed mechanism.
Assignee: Pratt and Whitney Co Inc
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Filing: —
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Granted: 1909-03-16
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Expires: 1926-03-16
Abstract
No abstract record available.
Inventors
- 👤 Bengt M W Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:24
CPC Classifications
B; B24; B24B; B24B47/00; B24B47/20; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2531; Y10T82/2533; Y10T82/2535; Y10T82/2572; Y10T82/2574
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) | 1912-03-15 | 1912-09-14 | 1913-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-03-15 | 1916-09-14 | 1917-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-03-15 | 1920-09-14 | 1921-03-16 | $7700.00 | Window Closed / Lapsed |