US3537343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: 3M Co
•
Filing: 1968-06-05
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Granted: 1970-11-03
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Expires: 1988-06-05
Abstract
No abstract record available.
Inventors
- 👤 David W Woodard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:31
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/18; B31; B31D; B31D1/00; B31D1/02; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0207; Y10T83/869; Y10T83/8821; Y10T83/8841; Y10T83/885; Y10T83/929; Y10T83/9309; Y10T83/9372; Y10T83/9408; Y10T83/9411; Y10T83/9449
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |