US2956045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silalkyltin siloxanes
Assignee: Dow Silicones Corp
•
Filing: 1958-08-28
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Granted: 1960-10-11
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Expires: 1978-08-28
Abstract
No abstract record available.
Inventors
- 👤 Robert L Merker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:23
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; C; C07; C07F; C07F7/00; C07F7/22; C07F7/2208; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/48; C08G77/58; C10; C10M; C10M3/00; C14; C14C; C14C9/00; C10M2227/00; C10M2227/08; C10M2227/083; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
A SILALKYLTIN SILOXANE SELECTED FROM THE GROUP CONSISTING OF (1) CYCLIC DISILOXANES OF THE FORMULA
Claim 2
Dependent Claim
15 words
A SILALKYLTIN SILOXANE SELECTED FROM THE GROUP CONSISTING OF (1) CYCLIC DISILOXANES OF THE FORMULA
Claim 3
Dependent Claim
17 words
A COPOLYMERIC SILALKYLTIN SILOXANE IN WHICH THE POLYMERIC UNITS CONSIST ESSENTIALLY OF (1) UNITS OF THE FORMULA
Claim 4
Dependent Claim
17 words
A COPOLYMERIC SILALKYLTIN SILOXANE IN WHICH THE POLYMERIC UNITS CONSIST ESSENTIALLY OF (1) UNITS OF THE FORMULA
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) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |