US3402731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piping systems
Assignee: Trane US Inc
•
Filing: 1965-08-11
•
Granted: 1968-09-24
•
Expires: 1985-08-11
Abstract
No abstract record available.
Inventors
- 👤 Martin George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:21
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/10; F16L13/103; F16L47/00; F16L47/02; F16L59/00; F16L59/14; F16L59/16; F16L59/163; F16L59/18; F16L59/20; F16L59/22; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2857931A
Cited
US2872946A
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US2980568A
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US2937662A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |