US2599994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
hirsch
Assignee: —
•
Filing: —
•
Granted: 1952-06-10
•
Expires: 1969-06-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:05
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/72; Y; Y10; Y10S; Y10S403/00; Y10S403/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US283375A
Cited
US419099A
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US555693A
Cited
US602769A
Cited
US660308A
Cited
US1026516A
Cited
US1295919A
Cited
US1454250A
Cited
US1777190A
Cited
US1778352A
Cited
GB417324A
Cited
US2225612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |