Patent US2642338A successfully refreshed from Google Patents.
US2642338A
Expired / Lapsed
US
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Method of and apparatus for producing nitric oxide
Assignee: Individual
•
Filing: 1944-02-12
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Granted: 1953-06-16
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Expires: 1964-02-12
Abstract
No abstract record available.
Inventors
- 👤 Robert D Pike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:02
CPC Classifications
F; F28; F28D; F28D17/00; F28D17/005; C; C01; C01B; C01B21/00; C01B21/20; C01B21/24; C01B21/30; C01B21/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
106 words
IN A PROCESS FOR MAKING NITRIC OXIDE FROM A GAS CONTAINING NITROGEN AND OXYGEN IN WHICH SAID GAS IS PASSED INTO A REACTION ZONE MAINTAINED AT A TEMPERATURE TO PRODUCE A SUBSTANTIAL AMOUNT OF NITRIC OXIDE AND THE REACTED GAS THEN PASSED INTO A PEBBLE CHILLING BED, THE STEP OF INTRODUCING INTO THE REACTED GAS SIMULTANEOUSLY WITH ITS ENTRANCE AND INTO THE ZONE OF ITS ENTRANCE INTO THE PEBBLE CHILLING BED A SUBSTANTIAL AMOUNT OF A COOLER GAS CONTAINING NITRIC OXIDE, THEREBY CAUSING AN INTIMATE ADMIXTURE OF THE COOLER GAS AND THE REACTED GAS AND A SHOCK CHILLING OF THE REACTED GAS BY THE CONJOINT ADDI-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |