Patent US3468744A successfully refreshed from Google Patents.
US3468744A
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US
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Assignee: 3M Co
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Filing: 1964-08-13
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Granted: 1969-09-23
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Expires: 1984-08-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Reinhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:45
CPC Classifications
B; B32; B32B; B32B27/00; C; C09; C09J; C09J7/00; C09J7/20; C09J7/29; C09J2301/00; C09J2301/10; C09J2301/16; C09J2301/162; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T428/00; Y10T428/14; Y10T428/1467; Y10T428/28; Y10T428/2848; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1985480A
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US2392594A
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US2477300A
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US2748042A
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US3048510A
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US3036945A
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US3079270A
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US3036927A
Cited
US3068118A
Cited
US3309257A
Cited
US3332829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |