Patent US2604291A successfully refreshed from Google Patents.
US2604291A
Expired / Lapsed
US
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Closure and mounting cap for hollow posts
Assignee: Individual
•
Filing: 1948-04-16
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Granted: 1952-07-22
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Expires: 1968-04-16
Abstract
No abstract record available.
Inventors
- 👤 Henry A Sollmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:24
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/006; Y; Y10; Y10S; Y10S248/00; Y10S248/907
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) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |