Patent US2634603A successfully refreshed from Google Patents.
US2634603A
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US
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Reinforcing rod spacer
Assignee: BYARS
•
Filing: 1947-02-28
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Granted: 1953-04-14
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Expires: 1967-02-28
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Byars
- 👤 William B Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:25
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/16; E01C11/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |