Patent US3498849A successfully refreshed from Google Patents.
US3498849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of manufacturing clad aluminium alloys
Assignee: British Aluminum Co Ltd
•
Filing: 1967-05-08
•
Granted: 1970-03-03
•
Expires: 1987-05-08
Abstract
No abstract record available.
Inventors
- 👤 John Worthington Munday
- 👤 Jeffrey Ernest Tomlinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:09
CPC Classifications
C; C22; C22F; C22F1/00; C22F1/04; B; B32; B32B; B32B15/00; B32B15/01; B32B15/016; C22C; C22C21/00; C22C21/06; C22C21/08; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10T; Y10T428/00; Y10T428/12; Y10T428/12465; Y10T428/12486; Y10T428/12493; Y10T428/12736; Y10T428/12764
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |