US1502501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterproof brick
Assignee: Individual
•
Filing: 1922-08-01
•
Granted: 1924-07-22
•
Expires: 1942-08-01
Abstract
No abstract record available.
Inventors
- 👤 Gumowski Antoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:35
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/47; C04B41/474; C04B41/60; C04B41/61; C04B41/62; C04B41/80; C04B41/81; C04B41/82; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31844
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) | 1927-07-22 | 1928-01-21 | 1928-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-07-22 | 1932-01-21 | 1932-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-07-22 | 1936-01-21 | 1936-07-22 | $7700.00 | Window Closed / Lapsed |