Patent US2602786A successfully refreshed from Google Patents.
US2602786A
Expired / Lapsed
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Copolymers of maleic anhydride
Assignee: JBS USA LLC
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Filing: 1949-12-16
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Granted: 1952-07-08
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Expires: 1969-12-16
Abstract
No abstract record available.
Inventors
- 👤 Stewart B Luce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:45
CPC Classifications
C; C08; C08F; C08F2/00; C08F22/00; C08F22/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
THE PROCESS OF PRODUCING A COPOLYMER COMPRISING MIXING MALEIC ANHYDRIDE WITH A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
16 words
THE PROCESS OF PRODUCING A COPOLYMER COMPRISING MIXING MALEIC ANHYDRIDE WITH A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2340110A
Cited
US2479522A
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US2448246A
Cited
US2437508A
Cited
US2533376A
Cited
US2497927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |