Patent US4684973A successfully refreshed from Google Patents.
Patent US579007A successfully refreshed from Google Patents.
US579007A
Expired / Lapsed
US
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Substructure for bridges
Assignee: —
•
Filing: —
•
Granted: 1897-03-16
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Expires: 1914-03-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:21
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/02; F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/048; F16B2/00; F16B2/02; F16B2/06; F16B2/065; F16B9/00; F16B9/05; F16B9/052; F16B9/09; F16B2200/00; F16B2200/10; F16B2200/50; F16B2200/503; F16B2200/509
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) | 1900-03-16 | 1900-09-15 | 1901-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1904-03-16 | 1904-09-15 | 1905-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1908-03-16 | 1908-09-15 | 1909-03-17 | $7700.00 | Window Closed / Lapsed |