US1172306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for detecting and destroying submarines, mines, and the like.
Assignee: Individual
•
Filing: 1915-02-26
•
Granted: 1916-02-22
•
Expires: 1935-02-26
Abstract
No abstract record available.
Inventors
- 👤 Herschel C Parker
- 👤 Edwin G Hatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:36
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/48; B63G; B63G7/00; B63G7/02
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) | 1919-02-21 | 1919-08-23 | 1920-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-02-21 | 1923-08-23 | 1924-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-02-21 | 1927-08-23 | 1928-02-22 | $7700.00 | Window Closed / Lapsed |