US2607791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic silahydrocarbons
Assignee: Dow Silicones Corp
•
Filing: 1949-03-19
•
Granted: 1952-08-19
•
Expires: 1969-03-19
Abstract
No abstract record available.
Inventors
- 👤 Jr John T Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:56
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/0805; C07F7/0807; C07F7/0825; C07F7/0827
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
CYCLIC COMPOSITIONS OF THE GENERAL FORMULA 7-CH2SIR2-)N IS WHICH EACH R IS A RADICAL OF THE GROUP CONSISTING OF ALKYL AND MONOCYCLIC ARYL RADICALS AND N HAS AN AVERAGE VALUE OF FROM THREE TO FIFTY INCLUSIVE.
Claim 2
Dependent Claim
36 words
CYCLIC COMPOSITIONS OF THE GENERAL FORMULA 7-CH2SIR2-)N IS WHICH EACH R IS A RADICAL OF THE GROUP CONSISTING OF ALKYL AND MONOCYCLIC ARYL RADICALS AND N HAS AN AVERAGE VALUE OF FROM THREE TO FIFTY INCLUSIVE.
References Cited (Backward Citations)
US2483972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |