US3477325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing foam plastic sheet stacks
Assignee: B-TECH Corp 163 WEST MERRILL ST BIRMINGHAM MI 48011 A MI CORP
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Filing: 1968-11-18
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Granted: 1969-11-11
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Expires: 1988-11-18
Abstract
No abstract record available.
Inventors
- 👤 Gerhard Kracht
- 👤 Paul M Svihra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:30
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/006; B26D1/00; B26F; B26F3/00; B26F3/06; B26F3/08; B26F3/12; Y; Y10; Y10S; Y10S83/00; Y10S83/924; Y10T; Y10T83/00; Y10T83/283; Y10T83/293; Y10T83/647; Y10T83/6476
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3163066A
Cited
US3333494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |