US2300683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Firebrick
Assignee: Individual
•
Filing: 1941-03-01
•
Granted: 1942-11-03
•
Expires: 1961-03-01
Abstract
No abstract record available.
Inventors
- 👤 John F Mcclaskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:43
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/66; C04B35/01; C04B35/16; C04B35/18; C04B35/622; C04B35/626; C04B35/63; C04B35/6303; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3217; C04B2235/38; C04B2235/3817; C04B2235/3826; C04B2235/42; C04B2235/422
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1945-11-02 | 1946-05-04 | 1946-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-11-02 | 1950-05-04 | 1950-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-11-02 | 1954-05-04 | 1954-11-03 | $7700.00 | Window Closed / Lapsed |