US3484900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing and piping of thermoplastics material
Assignee: Chemidus Plastics Ltd
•
Filing: 1967-05-05
•
Granted: 1969-12-23
•
Expires: 1987-05-05
Abstract
No abstract record available.
Inventors
- 👤 David Harold Sands
- 👤 Ronald Broome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
B; B29; B29C; B29C57/00; B29C57/02; B29C57/04; B29C57/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3160920A
Cited
US729099A
Cited
US2458854A
Cited
US2728127A
Cited
US3205535A
Cited
US3341894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |