US3469298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe pulling apparatus
Assignee: Atlas Pipe Popper Corp
•
Filing: 1966-10-04
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Granted: 1969-09-30
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Expires: 1986-10-04
Abstract
No abstract record available.
Inventors
- 👤 Remo R Pizzagalli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:47
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/024; F16L1/06; F16L1/09; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49945; Y10T29/53; Y10T29/5367; Y10T29/53678; Y10T29/53796; Y10T29/5383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US306263A
Cited
GB190623207A
Cited
US1540566A
Cited
US2170461A
Cited
US2613983A
Cited
US2487902A
Cited
US2879101A
Cited
US3368270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |