Patent US2838463A successfully refreshed from Google Patents.
US2838463A
Expired / Lapsed
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Chloroprene cement having improved adhesive properties
Assignee: Freeman Chemical Corp
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Filing: 1955-10-20
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Granted: 1958-06-10
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Expires: 1975-10-20
Abstract
No abstract record available.
Inventors
- 👤 Stephen E Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:40
CPC Classifications
C; C09; C09J; C09J111/00; C09J119/00; C09J119/003; C08; C08L; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A SMOOTH, HOMOGENEOUS CEMENT CONTAINING: 100 PARTS BY WEIGHT OF A VULCANIZED CHLOROPRENE POLYMER 1.9 PARTS BY WEIGHT OF N-PHENYL-BETA-NAPTHYLAMINE 7.2 PARTS BY WEIGHT OF PRECIPITATED CALCIUM SILICATE 3.7 PARTS BY WEIGHT OF LIGHT CALCINED MAGNESIA 4.7 PARTS BY WEIGHT OF ZINC OXIDE 36.2 PARTS BY WEIGHT OF A TERPENE-PHENOLIC THERMOPLASTIC RESIN 4.2 PARTS BY WEIGHT OF A PARACOUMARONE-INDENE RESIN 1.6 PARTS BY WEIGHT OF A CHLORINATED NATURAL RUBBER AND AN INERT ORGANIC SOLVENT.
Claim 2
Dependent Claim
74 words
A SMOOTH, HOMOGENEOUS CEMENT CONTAINING: 100 PARTS BY WEIGHT OF A VULCANIZED CHLOROPRENE POLYMER 1.9 PARTS BY WEIGHT OF N-PHENYL-BETA-NAPTHYLAMINE 7.2 PARTS BY WEIGHT OF PRECIPITATED CALCIUM SILICATE 3.7 PARTS BY WEIGHT OF LIGHT CALCINED MAGNESIA 4.7 PARTS BY WEIGHT OF ZINC OXIDE 36.2 PARTS BY WEIGHT OF A TERPENE-PHENOLIC THERMOPLASTIC RESIN 4.2 PARTS BY WEIGHT OF A PARACOUMARONE-INDENE RESIN 1.6 PARTS BY WEIGHT OF A CHLORINATED NATURAL RUBBER AND AN INERT ORGANIC SOLVENT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |