US2591267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for forming clay pipes with bell-shaped ends
Assignee: PACIFIC CLAY PRODUCTS
•
Filing: 1949-01-15
•
Granted: 1952-04-01
•
Expires: 1969-01-15
Abstract
No abstract record available.
Inventors
- 👤 Lacy Roy
- 👤 John D Rossier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:29
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/92; B28B21/98; Y; Y10; Y10S; Y10S425/00; Y10S425/218
Claims Analysis
Total Claims: 0
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US1312017A
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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) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |