Patent US3526542A successfully refreshed from Google Patents.
US3526542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet-like storage medium
Assignee: 3M Co
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Filing: 1966-08-24
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Granted: 1970-09-01
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Expires: 1986-08-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Wiese Jr
- 👤 William B Barte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:25
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72; G03C1/73; G03C1/733; G03C1/675; G03G; G03G5/00; G03G5/16; G11; G11B; G11B11/00; G11B11/03; G11B11/10; G11C; G11C13/00; G11C13/04; G11C13/048; H; H04; H04N; H04N5/00; H04N5/76; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10S428/913; Y10S430/00; Y10S430/137; Y10S430/143; Y10S430/163; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264
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) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |