US2897013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knockdown scaffold
Assignee: Individual
•
Filing: 1954-08-30
•
Granted: 1959-07-28
•
Expires: 1974-08-30
Abstract
No abstract record available.
Inventors
- 👤 Preston P Delp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:07
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/02; E04G7/06; E04G7/12; E04G7/14; E04G7/16; E04G7/30; E04G7/301; E04G7/302; E04G7/303; E04G7/305
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US296037A
Cited
US656298A
Cited
US1846011A
Cited
US1859894A
Cited
US1879244A
Cited
US2064232A
Cited
US2178667A
Cited
US2125830A
Cited
US2191051A
Cited
US2249659A
Cited
US2311988A
Cited
US2359583A
Cited
US2392932A
Cited
US2481885A
Cited
US2485685A
Cited
US2613114A
Cited
US2635717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |