Patent US2459039A successfully refreshed from Google Patents.
US3421782A
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US
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Assignee: Trane US Inc
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Filing: 1965-11-16
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Granted: 1969-01-14
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Expires: 1985-11-16
Abstract
No abstract record available.
Inventors
- 👤 Robert L Kalish
- 👤 Anthony J Kanyok
- 👤 Warren E Hulick
- 👤 Edward A G Hamer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:57
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/14; F16L13/16; F16L13/166; B; B01; B01D; B01D63/00; B01D63/06; B01D63/062; B01D63/063; B01D2313/00; B01D2313/04; B01D2313/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1928836A
Cited
US2398043A
Cited
GB589587A
Cited
FR1008020A
Cited
US2691536A
Cited
US3211476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |