US2521081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drier
Assignee: Individual
•
Filing: 1946-08-16
•
Granted: 1950-09-05
•
Expires: 1966-08-16
Abstract
No abstract record available.
Inventors
- 👤 Willard L Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 23:41
CPC Classifications
D; D06; D06F; D06F58/00; D06F58/20; D06F58/206; F; F26; F26B; F26B21/00; F26B21/30; F26B21/33; F26B21/333
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US652867A
Cited
US1119011A
Cited
US1434193A
Cited
US1434194A
Cited
US2016552A
Cited
US2224608A
Cited
US2310680A
Cited
US2418239A
Cited
US2453859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |