US3468849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the prevention of build-up of deposits in vapor conduits
Assignee: CHATILLON ITALIANA FIBRE
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Filing: 1966-11-08
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Granted: 1969-09-23
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Expires: 1986-11-08
Abstract
No abstract record available.
Inventors
- 👤 Horst Rothert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:24
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/785; B; B01; B01D; B01D5/00; B01D5/0003; B01D5/0021; B01D5/0033; B01D5/0045; B01J; B01J3/00; B01J3/02; B01J4/00; B01J4/001; C23; C23F; C23F15/00; C23F15/005; H; H05; H05B; H05B31/00; H05B31/0003; H05B31/0015
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) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |