US2209304A
Expired / Lapsed
US
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Composition for increasing the thermal emissivity of a surface and its combination with a surface
Assignee: JENNESS A ALDER
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Filing: 1937-09-07
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Granted: 1940-07-30
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Expires: 1957-09-07
Abstract
No abstract record available.
Inventors
- 👤 William F Alder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:06
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C04B24/00; C04B24/12; C04B2111/00; C04B2111/00474; C04B2111/00482; Y; Y10; Y10S; Y10S165/00; Y10S165/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-07-30 | 1944-01-29 | 1944-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-30 | 1948-01-29 | 1948-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-30 | 1952-01-29 | 1952-07-30 | $7700.00 | Window Closed / Lapsed |