US3426745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag means for collecting breathing and rebreathing air samples
Assignee: Bioconsultants Inc
•
Filing: 1967-03-27
•
Granted: 1969-02-11
•
Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 Andrew F Farr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:59
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/483; G01N33/497; A; A61; A61B; A61B5/00; A61B5/08; A61B5/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2702034A
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US2795223A
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US2867511A
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US2902992A
Cited
US3112747A
Cited
US3196689A
Cited
US3303840A
Cited
US3338087A
Cited
US3321976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |