US3501421A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers containing aminoalkyl-phosphonates
Assignee: GE Chemicals Inc
•
Filing: 1967-11-09
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Granted: 1970-03-17
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Expires: 1987-11-09
Abstract
No abstract record available.
Inventors
- 👤 Raymond R Hindersinn
- 👤 Miltiadis I Iliopulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:35
CPC Classifications
C; C08; C08G; C08G79/00; C08G79/02; C08G79/04; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/3889; C08G18/40; C08G18/42; C08G18/46; C08G18/4684; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4071; C08G63/00; C08G63/68; C08G63/685; C08G63/692; C08G63/6924; C08G65/00; C08G65/02; C08G65/26; C08G65/2639
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3076010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |