US2316013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe thread protector
Assignee: Individual
•
Filing: 1941-03-22
•
Granted: 1943-04-06
•
Expires: 1961-03-22
Abstract
No abstract record available.
Inventors
- 👤 Mulholland Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:33
CPC Classifications
F; F16; F16L; F16L57/00; F16L57/005; B; B65; B65D; B65D59/00; B65D59/02; B65D59/06
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) | 1946-04-05 | 1946-10-05 | 1947-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-04-05 | 1950-10-05 | 1951-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-04-05 | 1954-10-05 | 1955-04-06 | $7700.00 | Window Closed / Lapsed |