US2994919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing plastic pipe
Assignee: H D BOGGS CO Ltd
•
Filing: 1957-06-06
•
Granted: 1961-08-08
•
Expires: 1977-06-06
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Schafer
- 👤 Herbert D Boggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:49
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/16; B29C41/00; B29C41/02; B29C41/04; B29C41/042; B29C41/34; B29C41/46; B29C2035/1658; Y; Y10; Y10S; Y10S264/00; Y10S264/42; Y10S264/53
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) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |