US2701905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing concrete pipe
Assignee: Steam-Cote Corp
•
Filing: 1950-04-10
•
Granted: 1955-02-15
•
Expires: 1970-04-10
Abstract
No abstract record available.
Inventors
- 👤 Robert E Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:01
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/42; B28B21/44; B05; B05B; B05B7/00; B05B7/14; B05B7/1481; B05B7/149; B28B21/76; B28B21/82; Y; Y10; Y10S; Y10S425/00; Y10S425/121; Y10S425/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |