Patent US2028779A successfully refreshed from Google Patents.
US2028779A
Expired / Lapsed
US
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Apparatus for cleaning pipe lines
Assignee: ATLANTIC PIPE LINE Co
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Filing: 1935-02-28
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Granted: 1936-01-28
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Expires: 1955-02-28
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Howe
- 👤 Robert E Love
- 👤 Jr Joseph Harry Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:11
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/053; B08B9/055; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/8593; Y10T137/86292; Y10T137/863; Y10T137/9682
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) | 1939-01-27 | 1939-07-29 | 1940-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-27 | 1943-07-29 | 1944-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-27 | 1947-07-29 | 1948-01-28 | $7700.00 | Window Closed / Lapsed |