US2801150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of molding rubber and mold for same
Assignee: RICHARD C WEISS
•
Filing: 1954-05-10
•
Granted: 1957-07-30
•
Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Leonard D Koryta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:27
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/56
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
A FERROUS MOLD FOR VULCANZING RUBBER HAVING A SUFACE COATING COMPRISING SUBSTANTIALLY NON-CRYSTALLINE ZINC PHOSPHATE.
Claim 2
Dependent Claim
15 words
A FERROUS MOLD FOR VULCANZING RUBBER HAVING A SUFACE COATING COMPRISING SUBSTANTIALLY NON-CRYSTALLINE ZINC PHOSPHATE.
Claim 3
Dependent Claim
47 words
THE PROCESS OF MOLDING RUBBER AND LIKE METERIAL, WHICH COMPRISES APPLYING TO THE SURFACE OF A FERROUS MOLD, SUITABLE FOR VULCANZING RUBBER, A HARD AMORPHOUS NON-DUSTING COASTING OF ZINC PHOSPHATE, PLACING THE RUBBER TO BE VULCANIZED IN SAID MOLD, VULCANIZING SAID MATERIAL AND REMOVING THE RUBBER ARTICLE.
Claim 4
Dependent Claim
47 words
THE PROCESS OF MOLDING RUBBER AND LIKE METERIAL, WHICH COMPRISES APPLYING TO THE SURFACE OF A FERROUS MOLD, SUITABLE FOR VULCANZING RUBBER, A HARD AMORPHOUS NON-DUSTING COASTING OF ZINC PHOSPHATE, PLACING THE RUBBER TO BE VULCANIZED IN SAID MOLD, VULCANIZING SAID MATERIAL AND REMOVING THE RUBBER ARTICLE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |