Patent US2533339A successfully refreshed from Google Patents.
US2533339A
Expired / Lapsed
US
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Flammable vapor protection
Assignee: Jabez Burns and Sons Inc
•
Filing: 1946-06-22
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Granted: 1950-12-12
•
Expires: 1966-06-22
Abstract
No abstract record available.
Inventors
- 👤 Walter J Willenborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:29
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/14; G01N27/16; Y; Y10; Y10S; Y10S55/00; Y10S55/34; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1915; Y10T137/2496; Y10T137/2499; Y10T137/2509; Y10T137/8158
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1343911A
Cited
US524361A
Cited
USRE20041E
Cited
US1154128A
Cited
US1562243A
Cited
US1953244A
Cited
US1779569A
Cited
US1880941A
Cited
US2049987A
Cited
US1972932A
Cited
GB398722A
Cited
GB447813A
Cited
US2106147A
Cited
US2219391A
Cited
US2399965A
Cited
US2194520A
Cited
GB521098A
Cited
US2306509A
Cited
US2349250A
Cited
US2412287A
Cited
US2441677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |