Patent US4364387A successfully refreshed from Google Patents.
Patent US2473875A successfully refreshed from Google Patents.
US2473875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubes, pipes, and the like
Assignee: PLYMOLD Corp
•
Filing: 1942-06-27
•
Granted: 1949-06-21
•
Expires: 1962-06-27
Abstract
No abstract record available.
Inventors
- 👤 Paul R Goldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:58
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/01; B; B27; B27D; B27D1/00; B27D1/04; B27D1/08; B27D1/086
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US278957A
Cited
US441846A
Cited
US441836A
Cited
US534564A
Cited
US784909A
Cited
US1140430A
Cited
US1160100A
Cited
US1228099A
Cited
US1355778A
Cited
US1894341A
Cited
US1942468A
Cited
US2029049A
Cited
US2247197A
Cited
US2296781A
Cited
US2382834A
Cited
US2352533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |