US2483845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing for joints
Assignee: Houston Oil Field Material Co Inc
•
Filing: 1945-11-03
•
Granted: 1949-10-04
•
Expires: 1965-11-03
Abstract
No abstract record available.
Inventors
- 👤 Edward H Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:25
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; F04; F04B; F04B53/00; F04B53/16; F04B53/162; F04B53/166
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1010236A
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GB126330A
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GB379968A
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US2108392A
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US2170443A
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US2155180A
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US2165052A
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US2427789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |