US2722019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Buoy
Assignee: Individual
•
Filing: 1952-02-25
•
Granted: 1955-11-01
•
Expires: 1972-02-25
Abstract
No abstract record available.
Inventors
- 👤 Aaron T Brock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:07
CPC Classifications
B; B63; B63B; B63B22/00; B63B22/04; B63B22/06; B63B2209/00; B63B2209/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US524243A
Cited
US606517A
Cited
US637147A
Cited
US1249486A
Cited
US1416336A
Cited
US2397995A
Cited
US2586828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-31 | 1959-05-02 | 1959-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-31 | 1963-05-02 | 1963-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-31 | 1967-05-02 | 1967-11-01 | $7700.00 | Window Closed / Lapsed |