US2767194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions of matter
Assignee: Stauffer Chemical Co
•
Filing: 1955-03-18
•
Granted: 1956-10-16
•
Expires: 1975-03-18
Abstract
No abstract record available.
Inventors
- 👤 Llewellyn W Fancher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:00
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/553; C07F9/5537; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
AS A NEW COMPOSITION OF MATTER, A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
11 words
AS A NEW COMPOSITION OF MATTER, A COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US2233001A
Cited
US2447715A
Cited
US2553770A
Cited
US2640006A
Cited
US2706194A
Cited
US2644002A
Cited
DE930446C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |