US3450669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesters,polyethers and polymethanes stabilized with bis(hydroxymethyl) phosphinic acid and carbodiimide
Assignee: CHARLES D NOLEN
•
Filing: 1966-04-13
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Granted: 1969-06-17
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Expires: 1986-04-13
Abstract
No abstract record available.
Inventors
- 👤 Charles D Nolen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5313; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/089; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/388; C08L; C08L75/00; C08L75/04; Y; Y10; Y10S; Y10S521/00; Y10S521/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2230371A
Cited
US3193524A
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US2845454A
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US3193523A
Cited
US3193525A
Cited
US3378517A
Cited
US3249562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |