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US3477496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerator
Assignee: Linde GmbH
•
Filing: 1968-04-09
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Granted: 1969-11-11
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Expires: 1988-04-09
Abstract
No abstract record available.
Inventors
- 👤 Rudolf Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:44
CPC Classifications
F; F25; F25J; F25J5/00; F25J5/002; F28; F28D; F28D17/00; F28D17/02; F25J2205/00; F25J2205/24; F25J2210/00; F25J2210/40; F25J2290/00; F25J2290/44; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/903; Y10S62/904; Y10S62/909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1294514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |