US2938804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irradiation method and apparatus
Assignee: Armour and Co
•
Filing: 1957-09-13
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Granted: 1960-05-31
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Expires: 1977-09-13
Abstract
No abstract record available.
Inventors
- 👤 Roy C Gordon
- 👤 Bertie S Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:58
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/02; A; A23; A23B; A23B2/00; A23B2/50; A23B2/503; B; B01; B01J; B01J19/00; B01J19/08; B01J19/081; B01J19/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
APPARATUS FOR THE IRRADIATION OF A SUBSTANCE INCLUDING A RADIATION CHAMBER, A RADIATION SOURCE INCLUDING AN EVACUATED RADIATION TUBE HAVING AN END WITHIN SAID CHAMBER, VACUATION MEANS CONNECTED TO SAID CHAMBER TO MAINTAIN SAID CHAMBER AT A REDUCED AIR PRESSURE TO SUBSTANTIALLY BALANCE SAID EVACUATION OF SAID TUBE AT SAID END, AIR LOCK
Claim 2
Dependent Claim
53 words
APPARATUS FOR THE IRRADIATION OF A SUBSTANCE INCLUDING A RADIATION CHAMBER, A RADIATION SOURCE INCLUDING AN EVACUATED RADIATION TUBE HAVING AN END WITHIN SAID CHAMBER, VACUATION MEANS CONNECTED TO SAID CHAMBER TO MAINTAIN SAID CHAMBER AT A REDUCED AIR PRESSURE TO SUBSTANTIALLY BALANCE SAID EVACUATION OF SAID TUBE AT SAID END, AIR LOCK
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) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |