US3524341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pore determination of a porous member
Assignee: Trane US Inc
•
Filing: 1968-08-05
•
Granted: 1970-08-18
•
Expires: 1988-08-05
Abstract
No abstract record available.
Inventors
- 👤 Salil K Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:22
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/10; G01N15/00; G01N15/08; G01N15/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
SU201753A1
Cited
US1318473A
Cited
US2539355A
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US2705418A
Cited
US2724963A
Cited
US2942176A
Cited
US3349619A
Cited
US3301043A
Cited
US3371519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |