US3013936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic fiber papers
Assignee: EIDP Inc
•
Filing: 1958-01-07
•
Granted: 1961-12-19
•
Expires: 1978-01-07
Abstract
No abstract record available.
Inventors
- 👤 Iyengar Bindiganaval Yathiraja
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:46
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/12; D21H5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A COMPOSITION COMPRISING STAPLE FIBERS OF A HYDROPHILIC, WATER-INSOLUBLE, SYNTHETIC ORGANIC POLYMER AND 3% TO 15% BY WEIGHT OF A WATER-SWELLABLE, WATER-INSOLUBLE GUM IN ADMIXTURE THEREWITH, SAID SYNTHETIC ORGANIC POLYMER CONTAINING COPOLYMERIZABLE GROUPS -P-, AND
Claim 2
Dependent Claim
35 words
A COMPOSITION COMPRISING STAPLE FIBERS OF A HYDROPHILIC, WATER-INSOLUBLE, SYNTHETIC ORGANIC POLYMER AND 3% TO 15% BY WEIGHT OF A WATER-SWELLABLE, WATER-INSOLUBLE GUM IN ADMIXTURE THEREWITH, SAID SYNTHETIC ORGANIC POLYMER CONTAINING COPOLYMERIZABLE GROUPS -P-, AND
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |