Patent US3520756A successfully refreshed from Google Patents.
US3520756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminating machine
Assignee: Avant Corp
•
Filing: 1967-04-19
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Granted: 1970-07-14
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Expires: 1987-04-19
Abstract
No abstract record available.
Inventors
- 👤 James J Denaro
- 👤 Frederick W Macone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:42
CPC Classifications
B; B32; B32B; B32B37/00; B32B37/14; B32B37/16; B32B37/18; B32B37/182; B32B37/185; B32B27/00; B32B37/10; B32B37/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |