US898510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connection for culvert-sections.
Assignee: EDWARD A LANGENBACH
•
Filing: 1908-04-01
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Granted: 1908-09-15
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Expires: 1928-04-01
Abstract
No abstract record available.
Inventors
- 👤 Julius H Schlafly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:27
CPC Classifications
E; E01; E01F; E01F5/00; E01F5/005; F; F16; F16L; F16L9/00; F16L9/003
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) | 1911-09-15 | 1912-03-16 | 1912-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-09-15 | 1916-03-16 | 1916-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-09-15 | 1920-03-16 | 1920-09-15 | $7700.00 | Window Closed / Lapsed |