US2350369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape roll and core
Assignee: 3M Co
•
Filing: 1940-10-07
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Granted: 1944-06-06
•
Expires: 1960-10-07
Abstract
No abstract record available.
Inventors
- 👤 Clarence B Sampair
- 👤 Elbert C Lund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:58
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/10; A; A61; A61F; A61F15/00; A61F15/001; A61F15/002; B65H2701/00; B65H2701/30; B65H2701/37; B65H2701/377
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-06-06 | 1947-12-06 | 1948-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-06-06 | 1951-12-06 | 1952-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-06-06 | 1955-12-06 | 1956-06-06 | $7700.00 | Window Closed / Lapsed |