Patent US2446822A successfully refreshed from Google Patents.
US2446822A
Expired / Lapsed
US
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Method and apparatus for removing volatiles from articles involving the use of infra-red lamps
Assignee: Individual
•
Filing: 1943-08-11
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Granted: 1948-08-10
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Expires: 1963-08-11
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Grapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:10
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/02; F; F26; F26B; F26B15/00; F26B15/10; F26B15/12; F26B15/14; F26B3/00; F26B3/28; F26B3/283
Claims Analysis
Total Claims: 0
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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) | 1951-08-10 | 1952-02-09 | 1952-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-10 | 1956-02-09 | 1956-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-10 | 1960-02-09 | 1960-08-10 | $7700.00 | Window Closed / Lapsed |