US2490543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making composite stock
Assignee: Motors Liquidation Co
•
Filing: 1945-06-27
•
Granted: 1949-12-06
•
Expires: 1965-06-27
Abstract
No abstract record available.
Inventors
- 👤 John M Robertson
- 👤 Harold W Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
B; B22; B22F; B22F7/00; B22F7/02; B22F7/04; C; C23; C23C; C23C4/00; C23C4/02; C23C4/04; C23C4/06; C23C4/08; C23C4/18; Y; Y10; Y10S; Y10S29/00; Y10S29/039; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/937; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12042; Y10T428/12063; Y10T428/12069; Y10T428/1216; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB204384A
Cited
US1904241A
Cited
GB431067A
Cited
US2217001A
Cited
US2170361A
Cited
US2241095A
Cited
US2320327A
Cited
US2388694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |