US2230309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic product
Assignee: Individual
•
Filing: 1938-06-04
•
Granted: 1941-02-04
•
Expires: 1958-06-04
Abstract
No abstract record available.
Inventors
- 👤 Gordon W Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:46
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/14; E04F13/142; B; B28; B28B; B28B17/00; B28B17/0018; B28B3/00; B28B3/20; B28B3/26; Y; Y10; Y10S; Y10S425/00; Y10S425/109
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) | 1944-02-04 | 1944-08-05 | 1945-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-04 | 1948-08-05 | 1949-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-04 | 1952-08-05 | 1953-02-04 | $7700.00 | Window Closed / Lapsed |