US3432538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparation of cyclic diorganosiloxanes
Assignee: Texas Instruments Inc
•
Filing: 1966-07-01
•
Granted: 1969-03-11
•
Expires: 1986-07-01
Abstract
No abstract record available.
Inventors
- 👤 James W Curry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:01
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/21; C07F7/08; C07F7/0834
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2716128A
Cited
US2832794A
Cited
US2947772A
Cited
US3223474A
Cited
US3358009A
Cited
US3360538A
Cited
US3274288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |