US2609406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature-responsive device
Assignee: Armstrong World Industries Inc
•
Filing: 1947-05-24
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Granted: 1952-09-02
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Expires: 1967-05-24
Abstract
No abstract record available.
Inventors
- 👤 Imre J Barsy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:16
CPC Classifications
G; G01; G01K; G01K13/00; G01K13/10; G01K7/00; G01K7/02; G01K7/04; G01K7/06; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR353371A
Cited
US1887827A
Cited
US2002532A
Cited
US2012112A
Cited
US2144558A
Cited
US2305585A
Cited
US2321846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |