Patent US3427617A successfully refreshed from Google Patents.
US637969A
Expired / Lapsed
US
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Extension-bracket.
Assignee: Individual
•
Filing: 1898-10-26
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Granted: 1899-11-28
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Expires: 1918-10-26
Abstract
No abstract record available.
Inventors
- 👤 Walter A Nordyke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:23
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/22; F16L3/223; F16L3/2235
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) | 1902-11-28 | 1903-05-30 | 1903-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1906-11-28 | 1907-05-30 | 1907-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1910-11-28 | 1911-05-30 | 1911-11-29 | $7700.00 | Window Closed / Lapsed |