US2466919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1947-01-30
•
Granted: 1949-04-12
•
Expires: 1967-01-30
Abstract
No abstract record available.
Inventors
- 👤 Sykes Clint
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:07
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/18; E04F21/1838; E04F21/1883; E04F15/00; E04F15/02; E04F15/02194; E04F15/08; E04F15/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1210469A
Cited
US1519637A
Cited
US1809504A
Cited
US1742103A
Cited
US1828193A
Cited
US1916620A
Cited
US2184906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-11 | 1952-10-11 | 1953-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-11 | 1956-10-11 | 1957-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-11 | 1960-10-11 | 1961-04-12 | $7700.00 | Window Closed / Lapsed |