US2500245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for surface conditioning metal bodies
Assignee: Linde Air Products Co
•
Filing: 1944-08-09
•
Granted: 1950-03-14
•
Expires: 1964-08-09
Abstract
No abstract record available.
Inventors
- 👤 Edmund A Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:31
CPC Classifications
C; C23; C23G; C23G3/00; C23G5/00; Y; Y10; Y10S; Y10S29/00; Y10S29/102
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |