US1273902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magazine mechanism.
Assignee: Pratt and Whitney Co Inc
•
Filing: 1917-10-23
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Granted: 1918-07-30
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Expires: 1937-10-23
Abstract
No abstract record available.
Inventors
- 👤 Friedrich Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:47
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/10; B23Q7/106
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) | 1921-07-29 | 1922-01-28 | 1922-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-07-29 | 1926-01-28 | 1926-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-07-29 | 1930-01-28 | 1930-07-30 | $7700.00 | Window Closed / Lapsed |