Patent US1127250A successfully refreshed from Google Patents.
US1127250A
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Silencer.
Assignee: FRIEDRICH W L GRAF
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Filing: 1914-05-23
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Granted: 1915-02-02
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Expires: 1934-05-23
Abstract
No abstract record available.
Inventors
- 👤 Hans Humm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:30
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/30
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) | 1918-02-01 | 1918-08-03 | 1919-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-02-01 | 1922-08-03 | 1923-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-02-01 | 1926-08-03 | 1927-02-02 | $7700.00 | Window Closed / Lapsed |