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US2941661A
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Assignee: 3M Co
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Filing: 1959-02-24
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Granted: 1960-06-21
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Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Lloyd E Picard
- 👤 Jr Frank Swedish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:18
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/203; H; H02; H02G; H02G15/00; H02G15/08; H02G15/10; H02G15/117; C09J7/21; D; D21; D21H; D21H17/00; D21H17/20; D21H17/21; D21H17/24; D21H17/31; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/26; C09J2203/00; C09J2203/31; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283; C09J2407/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2633430A
Cited
GB753698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |