US2428501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrier
Assignee: Individual
•
Filing: 1945-12-29
•
Granted: 1947-10-07
•
Expires: 1965-12-29
Abstract
No abstract record available.
Inventors
- 👤 Milton G Otis
- 👤 Orland J Otis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:41
CPC Classifications
A; A01; A01D; A01D46/00; A01D46/24; A01D46/243
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US237711A
Cited
US612828A
Cited
US742900A
Cited
US1501812A
Cited
US1542927A
Cited
US1928594A
Cited
US2155688A
Cited
US2291936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |