US2508566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: DIAMOND MATCH Co
•
Filing: 1946-06-10
•
Granted: 1950-05-23
•
Expires: 1966-06-10
Abstract
No abstract record available.
Inventors
- 👤 Frank E Dunton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:33
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/10; B65H19/12; B65H19/126; B65H16/00; B65H16/02; B65H16/021; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/417; B65H2301/4171; B65H2301/4173; B65H2301/41734; B65H2301/418; B65H2301/4185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806879A
Cited
US1449093A
Cited
US1655226A
Cited
US1694515A
Cited
US1872045A
Cited
US2262118A
Cited
US2288621A
Cited
US2301674A
Cited
US2210531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-22 | 1953-11-21 | 1954-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-22 | 1957-11-21 | 1958-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-22 | 1961-11-21 | 1962-05-23 | $7700.00 | Window Closed / Lapsed |