US2705449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Register
Assignee: Individual
•
Filing: 1953-09-04
•
Granted: 1955-04-05
•
Expires: 1973-09-04
Abstract
No abstract record available.
Inventors
- 👤 Harry G Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:57
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1945972A
Cited
US2042310A
Cited
US2219747A
Cited
US2195411A
Cited
US2146391A
Cited
US2555978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |