US2842877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key tags
Assignee: Individual
•
Filing: 1953-03-19
•
Granted: 1958-07-15
•
Expires: 1973-03-19
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:29
CPC Classifications
A; A44; A44B; A44B15/00; A44B15/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2537693A
Cited
US1423147A
Cited
US1717718A
Cited
US1924479A
Cited
CH165684A
Cited
US1915563A
Cited
US2385778A
Cited
US2511651A
Cited
US2523206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |