Patent US3533788A successfully refreshed from Google Patents.
US3533788A
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Assignee: 3M Co
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Filing: 1967-08-25
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Granted: 1970-10-13
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Expires: 1987-08-25
Abstract
No abstract record available.
Inventors
- 👤 Robert F Coles
- 👤 Louis A Errede
- 👤 Richard A Miller
- 👤 Horatio S Stillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:34
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/36; G; G03; G03C; G03C1/00; G03C1/72; G03C1/73; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/0612; G03G5/0664; B32B2250/00; B32B2250/05; B32B2307/00; B32B2307/40; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2307/7244; Y; Y10; Y10S; Y10S430/00; Y10S430/162; Y10S430/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2297691A
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US3172827A
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US3250613A
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US3305361A
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US3436401A
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US3439003A
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US3288778A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |