US2923968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prepressing and dividing particle mats
Assignee: —
•
Filing: —
•
Granted: 1960-02-09
•
Expires: 1977-02-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:23
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/18; B27N3/183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US540053A
Cited
US565061A
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US1170053A
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US1550236A
Cited
US1742410A
Cited
US2231254A
Cited
US2497488A
Cited
US2689975A
Cited
US2648262A
Cited
US2582449A
Cited
US2614589A
Cited
US2700177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |