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US3056563A
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Assignee: 3M Co
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Filing: 1959-07-08
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Granted: 1962-10-02
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Expires: 1979-07-08
Abstract
No abstract record available.
Inventors
- 👤 Ronald L Whitnah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:38
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/037; B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H2701/00; B65H2701/30; B65H2701/37; B65H2701/377; B65H2701/50; B65H2701/51; B65H2701/513; B65H2701/5136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2152523A
Cited
US1962959A
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US2152522A
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US2229722A
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US2476928A
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US2693918A
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US2679988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |