US1887332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe-end protector
Assignee: PITTSBURGH SCREW AND BOLT Corp
•
Filing: 1930-05-10
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Granted: 1932-11-08
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Expires: 1950-05-10
Abstract
No abstract record available.
Inventors
- 👤 Peter J Shrum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:02
CPC Classifications
F; F16; F16L; F16L57/00; F16L57/005; B; B65; B65D; B65D59/00; B65D59/06; F16L17/00; F16L17/02; F16L17/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8242
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) | 1935-11-08 | 1936-05-09 | 1936-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-08 | 1940-05-09 | 1940-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-08 | 1944-05-09 | 1944-11-08 | $7700.00 | Window Closed / Lapsed |