US3026639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: 3M Co
•
Filing: 1959-12-18
•
Granted: 1962-03-27
•
Expires: 1979-12-18
Abstract
No abstract record available.
Inventors
- 👤 Lucille M Lille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:17
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US537391A
Cited
US1672518A
Cited
US2099029A
Cited
US2084971A
Cited
US2210743A
Cited
US2584254A
Cited
US2756525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |