US1230290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Life-preserver.
Assignee: EDMUND W LAWRENCE
•
Filing: 1917-03-28
•
Granted: 1917-06-19
•
Expires: 1937-03-28
Abstract
No abstract record available.
Inventors
- 👤 Bertha A Geiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/13; B63C9/15; B63C9/155; Y; Y10; Y10S; Y10S239/00; Y10S239/10; Y10S239/11
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) | 1920-06-18 | 1920-12-18 | 1921-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-06-18 | 1924-12-18 | 1925-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-06-18 | 1928-12-18 | 1929-06-19 | $7700.00 | Window Closed / Lapsed |