US2909551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disiloxane ester ethers
Assignee: R M HOLLINGSHEAD CORP
•
Filing: 1956-08-20
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Granted: 1959-10-20
•
Expires: 1976-08-20
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Shibe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:24
CPC Classifications
C; C10; C10M; C10M7/00; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C10M2227/00; C10M2227/02; C10N; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
DISILOXANE ESTER ETHERS HAVING THE FORMULA:
Claim 2
Dependent Claim
6 words
DISILOXANE ESTER ETHERS HAVING THE FORMULA:
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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |