US3522449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Trane US Inc
•
Filing: 1967-07-17
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Granted: 1970-08-04
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Expires: 1987-07-17
Abstract
No abstract record available.
Inventors
- 👤 Charles L Mcmurtrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:53
CPC Classifications
H; H03; H03H; H03H11/00; H03H11/02; H03H11/04; H03H11/0405; G; G01; G01F; G01F1/00; G01F15/00; G01F15/06; G01R; G01R23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2503958A
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US2579852A
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US2904677A
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US2987629A
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US3092732A
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US3041469A
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US3166679A
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US3181008A
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US3292150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |