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US2564402A
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US
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Drain pipe blow-out plug
Assignee: Individual
•
Filing: 1948-02-26
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Granted: 1951-08-14
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Expires: 1968-02-26
Abstract
No abstract record available.
Inventors
- 👤 Archibald N Macarthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:14
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/30; E03C1/304
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1311287A
Cited
FR455176A
Cited
US1212886A
Cited
US1627928A
Cited
US1706131A
Cited
US1655796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |