Patent US4054768A successfully refreshed from Google Patents.
Patent US2840437A successfully refreshed from Google Patents.
US2840437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pocket book structure
Assignee: Individual
•
Filing: 1954-10-04
•
Granted: 1958-06-24
•
Expires: 1974-10-04
Abstract
No abstract record available.
Inventors
- 👤 Cohen Hyam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:36
CPC Classifications
A; A45; A45C; A45C3/00; A45C3/06; A45C5/00; A45C5/06; A45C5/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US470728A
Cited
US1028767A
Cited
US1241093A
Cited
US1804163A
Cited
US2005791A
Cited
US2463993A
Cited
US2586543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |