Patent USRE19919E successfully refreshed from Google Patents.
USRE19919E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition material
Assignee: —
•
Filing: —
•
Granted: 1936-04-07
•
Expires: 1953-04-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:25
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/001; C04B28/02; C04B28/10; C04B28/105; C04B2111/00; C04B2111/00474; C04B2111/00482; C04B2111/20; C04B2111/2092; C04B2111/28; C04B2111/52
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) | 1939-04-07 | 1939-10-07 | 1940-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-07 | 1943-10-07 | 1944-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-07 | 1947-10-07 | 1948-04-07 | $7700.00 | Window Closed / Lapsed |