US3510247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modification of cellulosic materials with tertiary bis-acrylamides
Assignee: JP Stevens and Co Inc
•
Filing: 1964-04-01
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Granted: 1970-05-05
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Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 Giuliana C Tesoro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:44
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/18; C07D295/182; C07D295/185; C07C; C07C243/00; C07D241/00; C07D241/02; C07D241/04; C07D295/22; C07D295/26; D; D06; D06M; D06M13/00; D06M13/244; D06M13/248; D06M13/322; D06M13/402; D06M13/41; D06M13/422; D06M13/438
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3016281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |