US3232786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing means
Assignee: Fieldcrafts Inc
•
Filing: 1962-10-26
•
Granted: 1966-02-01
•
Expires: 1982-10-26
Abstract
No abstract record available.
Inventors
- 👤 Irving H Kellman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:33
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/40; C08J9/42; B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/102; F16J15/16; F16J15/18; F16J15/20; C08J2423/00; C08J2491/00; Y; Y10; Y10S; Y10S273/00; Y10S273/08; Y10S446/00; Y10S446/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A SEALING MEANS COMPRISING A BASE OF AN ELEASTIC, ORGANIC POLYURETHANE FOAM HAVING INTERCONNECTING CELLS DEFINING CELL WALLS, A COATING COVERING CELL WALLS SUBSTANTIALLY THROUGHOUT SAID FOAM AND CONSISTING ESSENTIALLY OF POLYBUTENE IN AN AMOUNT OF 51 TO 92% BY WEIGHT OF THE TOTAL WEIGHT OF THE SEALING MEANS WITH SAID COATING ACTING TO PREVENT OXIDATIVE DEGENERATION OF SAID FOAM AND ACTING IN CONJUNCTION WITH SAID FOAM TO PREVENT PASSAGE OF FLUIDS THROUGH SAID INTERCONNECTING CELLS WHEN SAID SEALING MEANS IS COMPRESSED.
Claim 2
Dependent Claim
82 words
A SEALING MEANS COMPRISING A BASE OF AN ELEASTIC, ORGANIC POLYURETHANE FOAM HAVING INTERCONNECTING CELLS DEFINING CELL WALLS, A COATING COVERING CELL WALLS SUBSTANTIALLY THROUGHOUT SAID FOAM AND CONSISTING ESSENTIALLY OF POLYBUTENE IN AN AMOUNT OF 51 TO 92% BY WEIGHT OF THE TOTAL WEIGHT OF THE SEALING MEANS WITH SAID COATING ACTING TO PREVENT OXIDATIVE DEGENERATION OF SAID FOAM AND ACTING IN CONJUNCTION WITH SAID FOAM TO PREVENT PASSAGE OF FLUIDS THROUGH SAID INTERCONNECTING CELLS WHEN SAID SEALING MEANS IS COMPRESSED.
References Cited (Backward Citations)
US2131342A
Cited
US2054115A
Cited
US2335321A
Cited
US2806256A
Cited
US2963398A
Cited
US2964424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |