US3452982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for stacking sheet stock
Assignee: Individual
•
Filing: 1967-07-20
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Granted: 1969-07-01
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Expires: 1987-07-20
Abstract
No abstract record available.
Inventors
- 👤 Emil Bischoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:07
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/26; B65H29/32; B21; B21B; B21B39/00; B21B39/002; B65G; B65G15/00; B65G15/04; B65G15/30; B65G15/58; B65G21/00; B65G21/20; B65G21/2027; B65G21/2036; B65H29/24; B65H29/241; B65H29/242; B65G2201/00; B65G2201/02; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4212; B65H2301/44; B65H2301/447; B65H2301/4473; B65H2301/44734; B65H2406/00; B65H2406/30; B65H2406/32; B65H2406/323
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) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |