US2734466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
hammial
Assignee: —
•
Filing: —
•
Granted: 1956-02-14
•
Expires: 1973-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:02
CPC Classifications
E; E04; E04D; E04D5/00; E04D5/10; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/161; Y10T428/19; Y10T428/192; Y10T428/197
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US314054A
Cited
US314857A
Cited
US1195408A
Cited
US646495A
Cited
US747120A
Cited
FR396471A
Cited
US1094893A
Cited
US1298541A
Cited
US1340949A
Cited
US1636388A
Cited
US1812732A
Cited
US1993792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-13 | 1959-08-15 | 1960-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-13 | 1963-08-15 | 1964-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-13 | 1967-08-15 | 1968-02-14 | $7700.00 | Window Closed / Lapsed |