US2527901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record filing and signaling construction
Assignee: Individual
•
Filing: 1946-02-16
•
Granted: 1950-10-31
•
Expires: 1966-02-16
Abstract
No abstract record available.
Inventors
- 👤 Wassell Willard Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:55
CPC Classifications
B; B42; B42F; B42F17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317643A
Cited
US850245A
Cited
US1295837A
Cited
US1558629A
Cited
US1530012A
Cited
US1645598A
Cited
US1768292A
Cited
US2122223A
Cited
GB484873A
Cited
US2328741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |