Patent US1928264A successfully refreshed from Google Patents.
US1928264A
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Heat insulating product and method of forming same
Assignee: BANNER ROCK Corp
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Filing: 1928-01-16
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Granted: 1933-09-26
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Expires: 1948-01-16
Abstract
No abstract record available.
Inventors
- 👤 Edward R Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:02
CPC Classifications
C; C04; C04B; C04B14/00; C04B14/38; C04B14/46; C03; C03B; C03B37/00; C03B37/01; C03B37/06; C04B2111/00; C04B2111/00474; C04B2111/00612; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24132
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) | 1936-09-25 | 1937-03-27 | 1937-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-09-25 | 1941-03-27 | 1941-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-09-25 | 1945-03-27 | 1945-09-26 | $7700.00 | Window Closed / Lapsed |