US3554887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photochemical apparatus and process
Assignee: EIDP Inc
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Filing: 1966-03-16
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Granted: 1971-01-12
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Expires: 1986-03-16
Abstract
Abstract A PHOTOCHEMICAL REACTOR COMPRISING AT LEAST ONE POLYMERIC RESIN REACTOR RUBE OF FRM 0.05 TO 0.50 INCH OUTSIDE DIAMETER WHICH IS CAPABLE OF TRANSMITTING RADIANT ENERGY OF FROM 2200 A. TO 6000 A. AND WHICH IS MAINTAINED AT A FIXED DISTANCE FROM THE RADIANT ENERGY SOURCE, A MEANS FOR INTRODUCING AND PASSING REACTANT MATERIALS THROUGH SAID REACTOR TUBE, AND THE PROCESS FOR CONDUCTING A RADIATION INTIIATED CHEMICAL REACTION IN SUCH A REACTOR.
Inventors
- 👤 Richard H Feehs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:05
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; B; B01; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/122; B01J19/123
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |