US3044217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spacer members for the reinforcement of reinforced concrete structures
Assignee: Individual
•
Filing: 1958-08-25
•
Granted: 1962-07-17
•
Expires: 1978-08-25
Abstract
No abstract record available.
Inventors
- 👤 Berry Ferdinand William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:13
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/16; E04C5/20; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3936; Y10T24/3953; Y10T24/44; Y10T24/44291; Y10T24/4453; Y10T24/44538
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US191472A
Cited
US629977A
Cited
US755063A
Cited
US1361558A
Cited
US1835632A
Cited
US2260974A
Cited
FR1022799A
Cited
GB688989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |