US2949445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methyl methacrylate polymers containing amino residues
Assignee: EIDP Inc
•
Filing: 1958-05-06
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Granted: 1960-08-16
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Expires: 1978-05-06
Abstract
No abstract record available.
Inventors
- 👤 Blake Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:23
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3209; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/10; C09D133/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A POLYMER PREDOMINATELY OF METHYL METHACRYLATE HAVING A RELATIVE VISCOSITY OF ABOUT 1.117 TO 1.196 AND CONSISTING ESSENTIALLY OF POLYMERIZED METHYL METHACRYLATE AND RADICALS OF THE FORMULA:
Claim 2
Dependent Claim
27 words
A POLYMER PREDOMINATELY OF METHYL METHACRYLATE HAVING A RELATIVE VISCOSITY OF ABOUT 1.117 TO 1.196 AND CONSISTING ESSENTIALLY OF POLYMERIZED METHYL METHACRYLATE AND RADICALS 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) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |