US2952037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming plastic binders
Assignee: Individual
•
Filing: 1956-09-14
•
Granted: 1960-09-13
•
Expires: 1976-09-14
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Ruck
- 👤 Richard C Layne
- 👤 Ralph E Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:50
CPC Classifications
B; B29; B29C; B29C67/00; B29C48/00; B29C48/001; B29C48/03; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1949226A
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US2044138A
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US2241813A
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US2294555A
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US2299061A
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US2323862A
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US2525284A
Cited
US2454194A
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US2546069A
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US2717423A
Cited
US2782851A
Cited
US2821155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |