US2826784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic pipe molding apparatus
Assignee: Individual
•
Filing: 1956-06-13
•
Granted: 1958-03-18
•
Expires: 1976-06-13
Abstract
No abstract record available.
Inventors
- 👤 Robert C Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:59
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/44; B29C43/00; B29C43/02; B29C43/10; B29C43/12; Y; Y10; Y10S; Y10S277/00; Y10S277/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2405245A
Cited
US2696184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |