US2567765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for effecting thermal diffusion
Assignee: Individual
•
Filing: 1946-04-17
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Granted: 1951-09-11
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Expires: 1966-04-17
Abstract
No abstract record available.
Inventors
- 👤 Peter J W Debye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:54
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; B; B01; B01D; B01D17/00; B01D17/005; C08J2325/00; C08J2325/02; C08J2325/04; C08J2325/06
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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |