US3044769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for separating two sheets of laminar material
Assignee: Chemische Fabriek L Van der Grinten NV
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Filing: 1961-03-14
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Granted: 1962-07-17
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Expires: 1981-03-14
Abstract
No abstract record available.
Inventors
- 👤 Breuers Theo Pierre Chretien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:10
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/58; B65H29/64; G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2766044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |