Patent US991565A successfully refreshed from Google Patents.
US991565A
Expired / Lapsed
US
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Ladder-scaffold.
Assignee: UNITED LADDER-SCAFFOLD Co
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Filing: 1909-04-03
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Granted: 1911-05-09
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Expires: 1929-04-03
Abstract
No abstract record available.
Inventors
- 👤 Fred Clare Valentine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:14
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/02; E06C1/14; E06C1/16; E06C1/18; B; B60; B60R; B60R3/00; E04; E04G; E04G1/00; E04G1/28; E04G1/30; E04G2001/302; E04G2001/305
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) | 1914-05-08 | 1914-11-07 | 1915-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-05-08 | 1918-11-07 | 1919-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-05-08 | 1922-11-07 | 1923-05-09 | $7700.00 | Window Closed / Lapsed |