US3459696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-repellent compositions
Assignee: EIDP Inc
•
Filing: 1968-08-01
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Granted: 1969-08-05
•
Expires: 1988-08-01
Abstract
No abstract record available.
Inventors
- 👤 Robert Emms Read
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
D; D06; D06M; D06M23/00; D06M23/06; C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/22; C08F220/24; C08L; C08L33/00; C08L33/04; C08L33/14; C08L33/16; C09; C09K; C09K3/00; C09K3/18; C09K3/30; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C08L23/00; C08L23/02; C08L23/16; C08L61/00; C08L61/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |