Patent US3527008A successfully refreshed from Google Patents.
US3527008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instanterect construction device
Assignee: Individual
•
Filing: 1969-03-28
•
Granted: 1970-09-08
•
Expires: 1989-03-28
Abstract
No abstract record available.
Inventors
- 👤 William Greenhalgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:06
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/14; B; B66; B66C; B66C1/00; B66C1/10; B66C1/62; B66C1/66; B66C1/666
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |