Patent US3409407A successfully refreshed from Google Patents.
US3409407A
Expired / Lapsed
US
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Corrosion resistant flame reactor
Assignee: Diamond Shamrock Corp
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Filing: 1967-07-31
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Granted: 1968-11-05
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Expires: 1987-07-31
Abstract
No abstract record available.
Inventors
- 👤 Loeffler John Edward
- 👤 H P Mcalister
- 👤 Paul R Prokish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:50
CPC Classifications
B; B01; B01J; B01J4/00; B01J4/001; B01J19/00; B01J19/02; C; C07; C07C; C07C4/00; C07C4/02; C07C4/025; B01J2219/00; B01J2219/00049; B01J2219/00245; B01J2219/00259; B01J2219/02; B01J2219/025; B01J2219/0277; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/92; Y10S585/921; Y10S585/922; Y10S585/923
Claims Analysis
Total Claims: 0
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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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |