US2729609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly tert-alkyl substituted carbocyclic monocarboxylic acids in alkyd resins
Assignee: Shell Development Co
•
Filing: 1952-10-16
•
Granted: 1956-01-03
•
Expires: 1972-10-16
Abstract
No abstract record available.
Inventors
- 👤 Roy W H Tess
- 👤 Thomas F Mika
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:29
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A RESINOUS REACTION PRODUCT OF A MIXTURE COMPRISING AN ACID COMPONENT OF THE GROUP CONSISTING OF POLYCARBOXYLIC ACIDS, POLYCARBOXYLIC ACD ANHYDRIDES AND POLYCARBOXYLIC ACID HALIDES, A POLYHYDRIC ALCOHOL AND A MODIFYING AGNET COMPRSING AT LEAST ONE POLY-TER-ALKYL-SUBSTITUTED CARBOCYCLIC MONOCARBOXYLIC ACID.
Claim 2
Dependent Claim
40 words
A RESINOUS REACTION PRODUCT OF A MIXTURE COMPRISING AN ACID COMPONENT OF THE GROUP CONSISTING OF POLYCARBOXYLIC ACIDS, POLYCARBOXYLIC ACD ANHYDRIDES AND POLYCARBOXYLIC ACID HALIDES, A POLYHYDRIC ALCOHOL AND A MODIFYING AGNET COMPRSING AT LEAST ONE POLY-TER-ALKYL-SUBSTITUTED CARBOCYCLIC MONOCARBOXYLIC ACID.
References Cited (Backward Citations)
US2606161A
Cited
US2618616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |