US3044122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of molding articles of microcellular material
Assignee: CIC Engineering Ltd
•
Filing: 1958-12-04
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Granted: 1962-07-17
•
Expires: 1978-12-04
Abstract
No abstract record available.
Inventors
- 👤 Charles E Webb
- 👤 Wallace G Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:33
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/0009; B29D35/0018; B29C; B29C43/00; B29C44/00; B29C44/02; B29C44/10; B29D35/0054; B29D35/0063; B29C33/00; B29C33/30; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/48; B29L2031/50; B29L2031/504
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
THE METHOD OF MOLDING A MASS OF THERMOPLASTIC MATERIAL WHICH COMPRISES SUBJECTING A MIXTURE OF SUCH THERMOPLASTIC MATERIAL AND A GASSING AGENT TO HEAT AND PRESSURE IN A MOLD CAVITY FOR A GIVEN CONTINOUS PERIOD
Claim 2
Independent Claim
35 words
THE METHOD OF MOLDING A MASS OF THERMOPLASTIC MATERIAL WHICH COMPRISES SUBJECTING A MIXTURE OF SUCH THERMOPLASTIC MATERIAL AND A GASSING AGENT TO HEAT AND PRESSURE IN A MOLD CAVITY FOR A GIVEN CONTINOUS PERIOD
References Cited (Backward Citations)
US1731240A
Cited
US1515475A
Cited
US1979246A
Cited
US2096338A
Cited
US2354260A
Cited
US2588151A
Cited
US2701389A
Cited
US2769205A
Cited
US2763897A
Cited
US2790996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |