US1356633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percussion-fuse for projectiles
Assignee: Krupp Stahl AG
•
Filing: 1920-09-07
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Granted: 1920-10-26
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Expires: 1940-09-07
Abstract
No abstract record available.
Inventors
- 👤 Kirchhoff Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:49
CPC Classifications
F; F42; F42C; F42C1/00; F42C1/02; F42C1/04; F42C1/06; Y; Y10; Y10T; Y10T82/00; Y10T82/26
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) | 1923-10-26 | 1924-04-26 | 1924-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-10-26 | 1928-04-26 | 1928-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-10-26 | 1932-04-26 | 1932-10-26 | $7700.00 | Window Closed / Lapsed |