US3023768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water pipe drain
Assignee: Individual
•
Filing: 1958-09-24
•
Granted: 1962-03-06
•
Expires: 1978-09-24
Abstract
No abstract record available.
Inventors
- 👤 Niemi Edvard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:25
CPC Classifications
E; E03; E03B; E03B7/00; E03B7/07; E03B7/08; Y; Y10; Y10T; Y10T137/00; Y10T137/5327; Y10T137/5433; Y10T137/5497; Y10T137/5503
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US53736A
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US287815A
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US302488A
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US536119A
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US613695A
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US683945A
Cited
US836400A
Cited
US935857A
Cited
US1040621A
Cited
US1270677A
Cited
US2648349A
Cited
US2676607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |