US2236209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of articles which are made of iron or steel and are threaed or possess surfaces which make tight joints
Assignee: Individual
•
Filing: 1938-05-10
•
Granted: 1941-03-25
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Expires: 1958-05-10
Abstract
No abstract record available.
Inventors
- 👤 Daeves Karl
- 👤 Becker Gottfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:04
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/06; C23C10/08; C23C10/10; C22; C22C; C22C38/00; C22C38/18
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) | 1944-03-24 | 1944-09-23 | 1945-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-24 | 1948-09-23 | 1949-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-24 | 1952-09-23 | 1953-03-25 | $7700.00 | Window Closed / Lapsed |