US2104082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building material and process of making same
Assignee: Patent and Licensing Corp
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Filing: 1935-03-27
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Granted: 1938-01-04
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Expires: 1955-03-27
Abstract
No abstract record available.
Inventors
- 👤 Kirschbraun Lester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:54
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/60; C04B41/61; C04B41/70; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24355; Y10T428/24372; Y10T428/2438; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/249968; Y10T428/25; Y10T428/26; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/31652; Y10T428/31815
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) | 1941-01-03 | 1941-07-05 | 1942-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-01-03 | 1945-07-05 | 1946-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-01-03 | 1949-07-05 | 1950-01-04 | $7700.00 | Window Closed / Lapsed |