US2730210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall units
Assignee: Individual
•
Filing: 1947-05-15
•
Granted: 1956-01-10
•
Expires: 1967-05-15
Abstract
No abstract record available.
Inventors
- 👤 Robert W Mclaughlin
- 👤 Guy F Kotrbaty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:21
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1310909A
Cited
US2472981A
Cited
US1150594A
Cited
US1224315A
Cited
US1487184A
Cited
US1664499A
Cited
US1629848A
Cited
US2010552A
Cited
US2090632A
Cited
US2231880A
Cited
US2145012A
Cited
US2186310A
Cited
US2175271A
Cited
US2268636A
Cited
US2180317A
Cited
US2275037A
Cited
US2352807A
Cited
US2399151A
Cited
US2377702A
Cited
US2535494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |