US2797731A
Expired / Lapsed
US
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Method for preventing moisture condensation on cold pipes
Assignee: Monsanto Chemicals Ltd
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Filing: 1955-10-06
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Granted: 1957-07-02
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Expires: 1975-10-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank A Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:42
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/02; B29C63/04; B29C63/08; B29C63/10; B29C63/06; F; F16; F16L; F16L58/00; F16L58/02; F16L58/04; F16L58/10; F16L58/1054; F16L58/1063; F16L59/00; F16L59/02; F16L59/021; F16L59/026; F16L59/027; F16L59/10; Y; Y10; Y10S; Y10S138/00; Y10S138/09; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1033; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1355; Y10T428/139; Y10T428/1393; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249977
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |