US3624964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Channel-type weatherstrip for slidable closures
Assignee: CRANE PLASTICS Inc
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Filing: 1970-02-02
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Granted: 1971-12-07
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Expires: 1990-02-02
Abstract
Abstract A CHANNEL-SHAPED WEATHERSTRIP OF NON-ABSORBENT FLEXIBLE PLASTIC MATERIALS FOR INSTALLATION IN A BEARING EDGE OF A SLIDABLE CLOSURE AND HAVING A SANDWICH CONSTRUCTION MADE UP OF A RELATIVELY THIN OUTER LAYER OF A FIRST, RELATIVELY HARD, WEAR-RESISTANT PLASTIC AND AN INNER CORE OF A RELATIVELY SOFT, FLEXIBLE, FOAMED OR EXPANDED PLASTIC.
Inventors
- 👤 Paul G Bordner
- 👤 Vernon P Fredricksen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:40
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2305; E06B7/2312; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24198
Claims Analysis
Total Claims: 0
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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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |