US2584624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door
Assignee: Individual
•
Filing: 1948-02-26
•
Granted: 1952-02-05
•
Expires: 1968-02-26
Abstract
No abstract record available.
Inventors
- 👤 Percival H Sherron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:24
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/58; E06B3/5892; E06B3/32; E06B3/48; E06B3/481
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR780761A
Cited
US1095152A
Cited
US1037394A
Cited
US1015212A
Cited
GB376814A
Cited
US2058711A
Cited
FR825622A
Cited
US2208166A
Cited
US2173435A
Cited
US2213315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |