US3338499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for welding pipe ends
Assignee: Individual
•
Filing: 1964-06-25
•
Granted: 1967-08-29
•
Expires: 1984-06-25
Abstract
No abstract record available.
Inventors
- 👤 Eugene V Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:30
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/32; B23K9/325; B23K9/326; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A PIPE PLUG COMPRISING A PAIR OF SPACED CIRCULAR DISKS OF WATER SOLUBLE PLASTIC SHEET MATERIAL, AND A CIRCULAR MEMBER OF CORRUGATED WATER SOLUBLE PLASTIC SHEET MATERIAL INTERCONNECTING SAID SPACED DISKS, THE DIAMETERS
Claim 2
Dependent Claim
33 words
A PIPE PLUG COMPRISING A PAIR OF SPACED CIRCULAR DISKS OF WATER SOLUBLE PLASTIC SHEET MATERIAL, AND A CIRCULAR MEMBER OF CORRUGATED WATER SOLUBLE PLASTIC SHEET MATERIAL INTERCONNECTING SAID SPACED DISKS, THE DIAMETERS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |