US3479880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for delivering samples to a gas chromatograph
Assignee: Philip Morris USA Inc
•
Filing: 1967-11-03
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Granted: 1969-11-25
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Expires: 1987-11-03
Abstract
No abstract record available.
Inventors
- 👤 Walter F Mutter
- 👤 Duane C Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:07
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/10; G01N35/1095; G01N35/1097; G01N30/00; G01N30/02; G01N30/04; G01N30/24
Claims Analysis
Total Claims: 0
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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) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |