US2434690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for producing asbestoscement pipes
Assignee: PAUL X BLAETTLER
•
Filing: 1944-03-07
•
Granted: 1948-01-20
•
Expires: 1964-03-07
Abstract
No abstract record available.
Inventors
- 👤 Ferla John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:23
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/02; B28B21/10; B28B21/36; B28B21/38; Y; Y10; Y10S; Y10S425/00; Y10S425/119
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB363873A
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CH162082A
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US2030758A
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US2144213A
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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) | 1951-01-19 | 1951-07-21 | 1952-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-19 | 1955-07-21 | 1956-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-19 | 1959-07-21 | 1960-01-20 | $7700.00 | Window Closed / Lapsed |