US2823049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bell and spigot inserted section pipe coupling and method of installation
Assignee: Individual
•
Filing: 1954-03-03
•
Granted: 1958-02-11
•
Expires: 1974-03-03
Abstract
No abstract record available.
Inventors
- 👤 Carl J Hombach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:06
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/122; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49442; Y10T29/49718; Y10T29/49732; Y10T29/49734; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |