Patent US3200877A successfully refreshed from Google Patents.
US3200877A
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Packing units for heat exchangers operating at extremely low temperatures
Assignee: Linde GmbH
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Filing: 1963-08-02
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Granted: 1965-08-17
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Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 Lehmer Wilhelm
- 👤 Rein Albert
- 👤 Weishaupt Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:19
CPC Classifications
F; F28; F28D; F28D17/00; F28D17/02; B; B01; B01J; B01J19/00; B01J19/30; B01J2219/00; B01J2219/30; B01J2219/302; B01J2219/30238; B01J2219/304; B01J2219/30408; B01J2219/30416; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S261/00; Y10S261/72; Y10S62/00; Y10S62/902; Y10S62/905; Y10S62/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2212932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |