US2689987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling device for building structures
Assignee: Individual
•
Filing: 1952-02-04
•
Granted: 1954-09-28
•
Expires: 1972-02-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:52
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/0007; E04B1/18; E04B1/26; E04B1/2604; E04B2001/268; E04B2001/2684; E04B2001/2688; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T70/00; Y10T70/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1375402A
Cited
US1369713A
Cited
US1775002A
Cited
US2226332A
Cited
US2129932A
Cited
US2340864A
Cited
US2483080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |