US2882970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated filter tip
Assignee: Olin Corp
•
Filing: 1956-04-18
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Granted: 1959-04-21
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Expires: 1976-04-18
Abstract
No abstract record available.
Inventors
- 👤 Milton O Schur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:39
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/02; A24D3/0275; A24D3/0287; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/931; Y10T; Y10T83/00; Y10T83/04; Y10T83/0448
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2445488A
Cited
US2716449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |