US2637880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing window strip
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1949-11-02
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Granted: 1953-05-12
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Expires: 1969-11-02
Abstract
No abstract record available.
Inventors
- 👤 Howard G Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:39
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/58; E06B3/62; E06B3/6205; B; B60; B60J; B60J10/00; B60J10/30; B60J10/36; B60J10/365; B60J10/70; E06B2003/6217; E06B2003/6226; E06B2003/625; E06B2003/6252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |