US3143515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for reclaiming scrap polyurethane resins
Assignee: Reeves Brothers Inc
•
Filing: 1956-04-18
•
Granted: 1964-08-04
•
Expires: 1976-04-18
Abstract
No abstract record available.
Inventors
- 👤 Roy T Hurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:59
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/10; C08J11/12; C08J2375/00; C08J2375/04; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2518806A
Cited
DE861926C
Cited
US2480851A
Cited
US2543530A
Cited
US2729618A
Cited
US2892216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |