Patent US2518330A successfully refreshed from Google Patents.
US2518330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duct rodding machine
Assignee: Individual
•
Filing: 1947-11-20
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Granted: 1950-08-08
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Expires: 1967-11-20
Abstract
No abstract record available.
Inventors
- 👤 Jasper Cronje
- 👤 George T Hawk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:09
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/06; H02G1/08; H02G1/088; B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/049; F; F16; F16L; F16L55/00; F16L55/26; F16L55/28
Claims Analysis
Total Claims: 0
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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) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |