US3046291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of silacyclobutanes
Assignee: Dow Silicones Corp
•
Filing: 1958-05-05
•
Granted: 1962-07-24
•
Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 Leo H Sommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:52
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/60; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0896; C07F7/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
A POLYMERIC ORGANOSILICON COMPOUND CONSISTING ESSENTIALLY OF UNITS HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
12 words
A POLYMERIC ORGANOSILICON COMPOUND CONSISTING ESSENTIALLY OF UNITS HAVING THE GENERAL FORMULA
Claim 3
Dependent Claim
39 words
A POLYMERIC ORGANOSILICON COMPOUND CONTAINING SILOXANE LINKAGES AND CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OBTAINED BY THE PROCESS COMPRISING POLYMERIZING AN ORGANOSILICON COMPOUND (1) CONTAINING SILICON-BONDED HYDROGEN AND SELECTED FROM THE GROUP CONSISTING OF (A) MONOMERS OF THE FORMULA
Claim 4
Dependent Claim
39 words
A POLYMERIC ORGANOSILICON COMPOUND CONTAINING SILOXANE LINKAGES AND CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OBTAINED BY THE PROCESS COMPRISING POLYMERIZING AN ORGANOSILICON COMPOUND (1) CONTAINING SILICON-BONDED HYDROGEN AND SELECTED FROM THE GROUP CONSISTING OF (A) MONOMERS OF 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) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |