US3215719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicate esters of essential alcohols
Assignee: Dan River Mills Inc
•
Filing: 1961-09-01
•
Granted: 1965-11-02
•
Expires: 1981-09-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Allen
- 👤 Harold J Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:27
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/50; D06M13/51; D06M13/513; C; C07; C07F; C07F7/00; C07F7/02; C07F7/04; D06M13/503; D06M13/507
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
NOVEL SILICATE ESTER HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
7 words
NOVEL SILICATE ESTER HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
DE662732C
Cited
US2550923A
Cited
US2566365A
Cited
US2634216A
Cited
US2643263A
Cited
US2643964A
Cited
US2924575A
Cited
US3024262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |