US2836611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
End-blocked linear polysiloxanes
Assignee: Rohm and Haas Co
•
Filing: 1955-03-30
•
Granted: 1958-05-27
•
Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Lawrence J Exner
- 👤 Benneville Peter L De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:15
CPC Classifications
C; C10; C10M; C10M3/00; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C10M2201/00; C10M2201/085; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/06; C10M2223/065; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
9 words
A COMPOSITION COMPRISING A COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
9 words
A COMPOSITION COMPRISING A COMPOUND HAVING THE GENERAL FORMULA
Claim 3
Independent Claim
20 words
A METHOD COMPRISING THE STEP OF REACTING A COMPOUND OF FORMULA III FOLLOWING WITH A COMPOUND OF FORMULA IV FOLLOWING:
Claim 4
Independent Claim
20 words
A METHOD COMPRISING THE STEP OF REACTING A COMPOUND OF FORMULA III FOLLOWING WITH A COMPOUND OF FORMULA IV FOLLOWING:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |