US2909363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matrix and edge sealing means for rotary regenerator
Assignee: International Motors LLC
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Filing: 1958-02-03
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Granted: 1959-10-20
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Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Jr C Paul Kolthoff
- 👤 Mack M Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:15
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04; F28D19/047; F02; F02C; F02C6/00; F02C6/04; F02C6/10; F02C6/12; F23; F23L; F23L15/00; F23L15/02; F28D11/00; F28D11/02; F28D19/041; F28D19/042; F24; F24F; F24F2203/00; F24F2203/10; F24F2203/104; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016; Y10S165/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT116544B
Cited
US2549656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |