US1487426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seaexe e
Assignee: —
•
Filing: —
•
Granted: 1924-03-18
•
Expires: 1941-03-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:13
CPC Classifications
E; E03; E03B; E03B11/00; E03B11/10; Y; Y02; Y02A; Y02A20/00; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/794; Y10T137/8593; Y10T137/86292; Y10T137/86348; Y10T137/86356
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) | 1927-03-18 | 1927-09-17 | 1928-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-03-18 | 1931-09-17 | 1932-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-03-18 | 1935-09-17 | 1936-03-18 | $7700.00 | Window Closed / Lapsed |