US2942454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building construction
Assignee: Individual
•
Filing: 1957-07-01
•
Granted: 1960-06-28
•
Expires: 1977-07-01
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:54
CPC Classifications
E; E04; E04H; E04H7/00; E04H7/02; E04H7/18; E04B; E04B2/00; E04B2/56; E04B2/84; E04B2/86; E04B2/8635
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US274022A
Cited
CA498721A
Cited
US666347A
Cited
US861175A
Cited
US1374356A
Cited
US1890532A
Cited
US2025529A
Cited
CH313919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |