Patent US3476406A successfully refreshed from Google Patents.
US3476406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book cover board structures and apparatus and method for making and coating the same
Assignee: Book Covers Inc
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Filing: 1965-04-09
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Granted: 1969-11-04
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Expires: 1985-04-09
Abstract
No abstract record available.
Inventors
- 👤 Edward K Mullen
- 👤 Leewood C Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:42
CPC Classifications
B; B42; B42C; B42C7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1908109A
Cited
US2355737A
Cited
US2390125A
Cited
US3168424A
Cited
US3145033A
Cited
US3190678A
Cited
US3195924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |