US3491902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air pressure stacking apparatus for metal sheets
Assignee: Moeller and Neuman GmbH
•
Filing: 1967-10-16
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Granted: 1970-01-27
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Expires: 1987-10-16
Abstract
No abstract record available.
Inventors
- 👤 Walter Waldura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:04
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/26; B65H29/28; B65G; B65G57/00; B65G57/02; B65G57/03; B65G57/035; B65G57/06; B65H29/24; B65H29/245; B65H29/34; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4212; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/101; Y10S414/114
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2261972A
Cited
DE812537C
Cited
US2637450A
Cited
US2645480A
Cited
US2985322A
Cited
US3224761A
Cited
US3321202A
Cited
US3381829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |