US2618150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas and vapor measuring apparatus
Assignee: Jabez Burns and Sons Inc
•
Filing: 1947-09-25
•
Granted: 1952-11-18
•
Expires: 1967-09-25
Abstract
No abstract record available.
Inventors
- 👤 Walter J Willenborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:48
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/14; G01N27/16; G01N27/18; G01N27/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1302871A
Cited
GB250478A
Cited
US1955897A
Cited
FR730504A
Cited
US2204966A
Cited
US2372530A
Cited
US2441677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |