Patent US2813432A successfully refreshed from Google Patents.
Patent US2986242A successfully refreshed from Google Patents.
US2986242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base ring foundation
Assignee: LACONIA MALLEABLE IRON CO Inc
•
Filing: 1958-12-23
•
Granted: 1961-05-30
•
Expires: 1978-12-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Merton L Clevett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:33
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/20; E04H15/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1315969A
Cited
US742525A
Cited
US1257945A
Cited
US1747472A
Cited
US2499478A
Cited
US2681834A
Cited
FR1145981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |