US2545804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated card
Assignee: Individual
•
Filing: 1948-06-07
•
Granted: 1951-03-20
•
Expires: 1968-06-07
Abstract
No abstract record available.
Inventors
- 👤 Roy E Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:08
CPC Classifications
B; B42; B42D; B42D25/00; B42D25/20; B42D25/23; B42D25/40; B42D25/45; B42D25/455; B42D25/46; B42D25/30; B42D25/318
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1071226A
Cited
US1592711A
Cited
US1956527A
Cited
US2088567A
Cited
US2297285A
Cited
US2361670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |