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Patent US3471357A successfully refreshed from Google Patents.
US3471357A
Expired / Lapsed
US
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Protective film,method of adhesively securing it to a paper base and resulting laminate
Assignee: 3M Co
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Filing: 1966-05-11
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Granted: 1969-10-07
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Expires: 1986-05-11
Abstract
No abstract record available.
Inventors
- 👤 Leonas L Bildusas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:28
CPC Classifications
B; B41; B41M; B41M7/00; B41M7/0027; B32; B32B; B32B27/00; B41M5/00; B41M5/26; B41M5/40; D; D21; D21H; D21H19/00; D21H19/80; D21H19/82; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |