US2928156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: NEW ZIPPER Corp
•
Filing: 1957-06-19
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Granted: 1960-03-15
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Expires: 1977-06-19
Abstract
No abstract record available.
Inventors
- 👤 Doelter Gandolph
- 👤 Weissman Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:39
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; A44B19/30; A44B19/301; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2511; Y10T24/2513; Y10T24/2561; Y10T24/2586
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2123512A
Cited
US2270782A
Cited
FR1005546A
Cited
DE808881C
Cited
US2832119A
Cited
US2873741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |