US2780067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof supporting means or cap and a method of positioning the same
Assignee: Gutehoffnungshutte Oberhausen AG
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Filing: 1952-05-12
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Granted: 1957-02-05
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Expires: 1972-05-12
Abstract
No abstract record available.
Inventors
- 👤 Jacobi Oskar
- 👤 Muller Otmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:55
CPC Classifications
E; E21; E21D; E21D17/00; E21D17/02; E21D17/08; E21D17/086; E21D17/01; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |