US3500884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch installation tool
Assignee: Newfrey LLC
•
Filing: 1967-11-20
•
Granted: 1970-03-17
•
Expires: 1987-11-20
Abstract
No abstract record available.
Inventors
- 👤 Albert E Hand
- 👤 Theodore H Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:46
CPC Classifications
B; B27; B27F; B27F5/00; B27F5/02; B27F5/12; E; E04; E04F; E04F21/00; E04F21/003; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5623
Claims Analysis
Total Claims: 0
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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) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |