US1729446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ship hull
Assignee: Individual
•
Filing: 1928-09-28
•
Granted: 1929-09-24
•
Expires: 1948-09-28
Abstract
No abstract record available.
Inventors
- 👤 Erich R F Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:37
CPC Classifications
B; B63; B63B; B63B1/00; B63B1/02; B63B1/04; B63B1/16; B63B1/18; B63B1/20; B63B2001/201
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1932-09-23 | 1933-03-25 | 1933-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-23 | 1937-03-25 | 1937-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-23 | 1941-03-25 | 1941-09-24 | $7700.00 | Window Closed / Lapsed |