Patent US3288667A successfully refreshed from Google Patents.
US3288667A
Expired / Lapsed
US
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Sealing element
Assignee: PPG Industries Inc
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Filing: 1964-04-29
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Granted: 1966-11-29
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:55
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/18; C09J123/20; B; B29; B29D; B29D99/00; B29D99/0053; B60; B60J; B60J10/00; B60J10/15; B60J10/70; C09J123/22; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/26; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/31504; Y10T428/31551; Y10T428/31645
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
AN ELONGATED SEALING ELEMENT WHICH COMPRISES: (1) A TACKY, MOISTURE AND VAPOR IMPERVIOUS ADHESIVE COMPOSITION COMPRISING AN AT LEAST PARTIALLY VULCANIZED MIXTURE OF (A) A POLYMER OF A MONOOLEFIN CONTAINING 4 CARBON ATOMS AND HAVING A MOLECULAR WEIGHT BETWEEN 300 AND 15,000, AND (B) A COPOLYMER OF FROM ABOUT 70 TO ABOUT 99.5 PARTS BY WEIGHT OF A MONOOLEFIN CONTAINING 4 CARBON ATOMS, AND FROM ABOUT 0.5 TO ABOUT 30 PARTS BY WEIGHT OF A DIOLEFIN CONTAINING 4 TO 6 CARBON ATOMS, SAID COPOLYMER HAVING A MOLECULAR WEIGHT BETWEEN 25,000 AND ABOUT 100,000, SAID POLYMER BEING PRESENT IN AN AMOUNT EQUAL TO ABOUT 45 TO ABOUT 210 PARTS BY WEIGHT PER 100 PARTS OF SAID COPOLYMER; AND (2) AN INTEGRAL CORE WITHIN SAID ADHESIVE COMPOSITION COMPOSED OF A RESILIENT, FLEXIBLE POLYMERIC MATERIAL HAVING A SHORE A DUROMETER HARDNESS OF FROM ABOUT 20 TO ABOUT 100; THE SURFACE OF SAID SEALING ELEMENT BEING A LAYER OF SAID ADHESIVE COMPOSITION AT LEAST 0.01 INCH IN THICKNESS.
Claim 2
Dependent Claim
164 words
AN ELONGATED SEALING ELEMENT WHICH COMPRISES: (1) A TACKY, MOISTURE AND VAPOR IMPERVIOUS ADHESIVE COMPOSITION COMPRISING AN AT LEAST PARTIALLY VULCANIZED MIXTURE OF (A) A POLYMER OF A MONOOLEFIN CONTAINING 4 CARBON ATOMS AND HAVING A MOLECULAR WEIGHT BETWEEN 300 AND 15,000, AND (B) A COPOLYMER OF FROM ABOUT 70 TO ABOUT 99.5 PARTS BY WEIGHT OF A MONOOLEFIN CONTAINING 4 CARBON ATOMS, AND FROM ABOUT 0.5 TO ABOUT 30 PARTS BY WEIGHT OF A DIOLEFIN CONTAINING 4 TO 6 CARBON ATOMS, SAID COPOLYMER HAVING A MOLECULAR WEIGHT BETWEEN 25,000 AND ABOUT 100,000, SAID POLYMER BEING PRESENT IN AN AMOUNT EQUAL TO ABOUT 45 TO ABOUT 210 PARTS BY WEIGHT PER 100 PARTS OF SAID COPOLYMER; AND (2) AN INTEGRAL CORE WITHIN SAID ADHESIVE COMPOSITION COMPOSED OF A RESILIENT, FLEXIBLE POLYMERIC MATERIAL HAVING A SHORE A DUROMETER HARDNESS OF FROM ABOUT 20 TO ABOUT 100; THE SURFACE OF SAID SEALING ELEMENT BEING A LAYER OF SAID ADHESIVE COMPOSITION AT LEAST 0.01 INCH IN THICKNESS.
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |