US2871998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal building construction
Assignee: RC Mahon Co
•
Filing: 1954-06-01
•
Granted: 1959-02-03
•
Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Cross Earl Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:11
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7401; E04B2/7403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1234903A
Cited
US1231289A
Cited
US1404777A
Cited
US1760955A
Cited
CH165103A
Cited
US2641035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |